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Effect of the COVID-19 pandemic on surgery for indeterminate thyroid nodules (THYCOVID): a retrospective, international, multicentre, cross-sectional study

F. Medas, C. Dobrinja, EA. Al-Suhaimi, J. Altmeier, S. Anajar, AE. Arikan, I. Azaryan, L. Bains, G. Basili, H. Bolukbasi, M. Bononi, F. Borumandi, MB. Bozan, G. Brenta, L. Brunaud, M. Brunner, A. Buemi, GL. Canu, F. Cappellacci, SB. Cartwright,...

. 2023 ; 11 (6) : 402-413. [pub] 20230428

Language English Country England, Great Britain

Document type Multicenter Study, Journal Article

BACKGROUND: Since its outbreak in early 2020, the COVID-19 pandemic has diverted resources from non-urgent and elective procedures, leading to diagnosis and treatment delays, with an increased number of neoplasms at advanced stages worldwide. The aims of this study were to quantify the reduction in surgical activity for indeterminate thyroid nodules during the COVID-19 pandemic; and to evaluate whether delays in surgery led to an increased occurrence of aggressive tumours. METHODS: In this retrospective, international, cross-sectional study, centres were invited to participate in June 22, 2022; each centre joining the study was asked to provide data from medical records on all surgical thyroidectomies consecutively performed from Jan 1, 2019, to Dec 31, 2021. Patients with indeterminate thyroid nodules were divided into three groups according to when they underwent surgery: from Jan 1, 2019, to Feb 29, 2020 (global prepandemic phase), from March 1, 2020, to May 31, 2021 (pandemic escalation phase), and from June 1 to Dec 31, 2021 (pandemic decrease phase). The main outcomes were, for each phase, the number of surgeries for indeterminate thyroid nodules, and in patients with a postoperative diagnosis of thyroid cancers, the occurrence of tumours larger than 10 mm, extrathyroidal extension, lymph node metastases, vascular invasion, distant metastases, and tumours at high risk of structural disease recurrence. Univariate analysis was used to compare the probability of aggressive thyroid features between the first and third study phases. The study was registered on ClinicalTrials.gov, NCT05178186. FINDINGS: Data from 157 centres (n=49 countries) on 87 467 patients who underwent surgery for benign and malignant thyroid disease were collected, of whom 22 974 patients (18 052 [78·6%] female patients and 4922 [21·4%] male patients) received surgery for indeterminate thyroid nodules. We observed a significant reduction in surgery for indeterminate thyroid nodules during the pandemic escalation phase (median monthly surgeries per centre, 1·4 [IQR 0·6-3·4]) compared with the prepandemic phase (2·0 [0·9-3·7]; p<0·0001) and pandemic decrease phase (2·3 [1·0-5·0]; p<0·0001). Compared with the prepandemic phase, in the pandemic decrease phase we observed an increased occurrence of thyroid tumours larger than 10 mm (2554 [69·0%] of 3704 vs 1515 [71·5%] of 2119; OR 1·1 [95% CI 1·0-1·3]; p=0·042), lymph node metastases (343 [9·3%] vs 264 [12·5%]; OR 1·4 [1·2-1·7]; p=0·0001), and tumours at high risk of structural disease recurrence (203 [5·7%] of 3584 vs 155 [7·7%] of 2006; OR 1·4 [1·1-1·7]; p=0·0039). INTERPRETATION: Our study suggests that the reduction in surgical activity for indeterminate thyroid nodules during the COVID-19 pandemic period could have led to an increased occurrence of aggressive thyroid tumours. However, other compelling hypotheses, including increased selection of patients with aggressive malignancies during this period, should be considered. We suggest that surgery for indeterminate thyroid nodules should no longer be postponed even in future instances of pandemic escalation. FUNDING: None.

1st Propedeutic Department of Surgery Aristotle University of Thessaloniki AHEPA University Hospital Thessaloniki Greece

2nd Department of Surgery Athens Naval and Veterans Hospital Athens Greece

3rd Department of Surgery Attikon University Hospital Athens Greece

3rd Faculty of Medicine Charles University Prague Czech Republic

3rd Surgery Department Aristotle University of Thessaloniki Thessaloniki Greece

4th Department of Surgery Medical School Aristotle University of Thessaloniki General Hospital Georgios Papanikolaou Thessaloniki Greece

ASL VCO Ospedale San Biagio Domodossola Italy

Azienda USL Toscana Nord Ovest UOSD Chirurgia della Tiroide Toscana Italy

Biology Department College of Science Institute for Research and Medical Consultations Imam Abdulrahman Bin Faisal University Dammam Saudi Arabia

Central Research Laboratory Clinical Medical Multidisciplinary Center of St Luke 6 Vernadsky Crimean Federal University Simferopol Russia

Clinic for Endocrine Surgery University Clinical Center of Serbia Belgrade Serbia

Clinic for Surgical Oncology Institute of Oncology and Radiology of Serbia Belgrade Serbia

Clinic of Otorhinolaryngology and Head and Neck Surgery Central Military Hospital Ružomberok Ružomberok Slovakia

Clinical University Hospital Santiago de Compostela University of Santiago de Compostela Santiago de Compostela Spain

CMH Lahore Medical College and Institute of Dentistry Lahore Pakistan

Departamento de Cabeza y Cuello Instituto Nacional de Cancerología Mexico City Mexico

Departamento de Cirurgia de Cabeça e Pescoço Hospital São Camilo Oncologia Instituto Brasileiro de Controle do Câncer São Paulo Brazil

Departamento de Patología Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Mexico City Mexico

Department of Biomedical Sciences Humanitas University Pieve Emanuele Italy

Department of Breast and Endocrine Surgery Kitasato University Hospital Sagamihara Japan

Department of Endocrin Pathology Unit University of Health Sciences Faculty of Medicine Bakırköy Dr Sadi Konuk Training and Research Hospital Istanbul Turkey

Department of Endocrine and Ultrasound Guided Surgery Ospedale del Mare ASl Napoli 1 Centro Naples Italy

Department of Endocrine Surgery Evangelisches Klinikum Cologne Weyertal Cologne Germany

Department of Endocrinology and Nutrition Hospital Universitari Mútua Terrassa Terrassa Spain

Department of Endocrinology Tan Tock Seng Hospital Singapore

Department of ENT Head and Neck Surgery All India Institute of Medical Sciences Bhubaneswar India

Department of ENT University Hospitals Birmingham NHS Trust Birmingham UK

Department of General and Digestive Surgery Division of Endocrine Surgery Complexo Hospitalario Universitario de Vigo Vigo Spain

Department of General and Digestive Surgery Hospital Universitario de La Princesa Madrid Spain

Department of General and Visceral Surgery Friedrich Alexander University Erlangen Nuremberg Erlangen Germany

Department of General Emergency and New Technologies University Hospital of Modena Baggiovara Civil Hospital Modena Italy

Department of General Endocrine and Transplant Surgery Medical University of Gdańsk Gdańsk Poland

Department of General Minimally Invasive and Endocrine Surgery Wroclaw Medical University Wroclaw Poland

Department of General Surgery Acibadem Mehmet Ali Aydinlar University School of Medicine Istanbul Türkiye

Department of General Surgery Division of Visceral Surgery Medical University Vienna Vienna Austria

Department of General Visceral Cancer and Transplant Surgery University Hospital Cologne Cologne Germany

Department of Head and Neck Surgery Hospital das Clínicas University of São Paulo São Paulo Brazil

Department of Head and Neck Surgery Medanta Gurugram India

Department of Head and Neck Surgry and Otorhinolaryngology AC Camargo Cancer Center São Paulo Brazil

Department of Medical and Surgical Sciences University of Trieste Cattinara Teaching Hospital Trieste Italy

Department of Medicine Faculty of Medicine Ramathibodi Hospital Mahidol University Bangkok Thailand

Department of Nuclear Medicine PET CT Theageneio Cancer Hospital of Thessaloniki Thessaloniki Greece

Department of Oral and Maxillofacial Surgery University Hospitals Sussex NHS Foundation Trust St Richard's Hospital Chichester and Worthing Hospital Worthing UK

Department of Otolaryngology Faculty of Medicine Chulalongkorn University Bangkok Thailand

Department of Otolaryngology Head and Neck Surgery Auckland City Hospital Auckland New Zealand

Department of Otolaryngology Head and Neck Surgery Cheikh Khalifa International University Hospital Mohammed 6 University of Health Sciences Casablanca Morocco

Department of Otolaryngology Head and Neck Surgery Faculty of Medicine Srinakharinwirot University Bangkok Thailand

Department of Otolaryngology Head and Neck Surgery Kovai Medical Center and Hospital Coimbatore India

Department of Otolaryngology Head and Neck Surgery University of Toronto Toronto ON Canada

Department of Otorhinolaryngology and Head and Neck Surgery University Hospital Center Sestre Milosrdnice Zagreb Croatia

Department of Otorhinolaryngology and Head and Neck Surgery University Hospital of Nîmes Nîmes France

Department of Otorhinolaryngology and Maxillofacial Surgery Military University Hospital Prague Czech Republic

Department of Otorhinolaryngology Head and Neck Surgery CHA Bundang Medical Center CHA University Seongnam South Korea

Department of Otorhinolaryngology Head and Neck Surgery IRCCS Humanitas Research Hospital Rozzano Italy

Department of Otorhinolaryngology Head and Neck Surgery Singapore General Hospital Singapore

Department of Otorhinolaryngology University of Health Sciences Gülhane Research and Training Hospital Ankara Turkey

Department of Paediatric Surgery Medical Faculty of Comenius University National Institute of Children's Diseases Bratislava Slovakia

Department of Pathophysiology Faculty of Medical Sciences University of Kragujevac Kragujevac Serbia

Department of Pediatric Otolaryngology Head and Neck Surgery Oregon Health and Science University Portland OR USA

Department of Precision and Regenerative Medicine and Ionian Area University of Bari Aldo Moro Bari Italy

Department of Radiology Thien Hanh Hospital Buon Ma Thuot Vietnam

Department of Scientific Affairs Smart Health Tower Sulaimani Iraq

Department of Surgery Ajou University School of Medicine Suwon South Korea

Department of Surgery and Department of Internal Medicine University of Arkansas for Medical Sciences Little Rock AR USA

Department of Surgery and Otolaryngology Oregon Health and Science University Portland OR USA

Department of Surgery Anesthesia and Interventional Radiology Head and Neck Oncology Service Thyroid Surgery Unit Gustave Roussy Villejuif France

Department of Surgery Ankara University Faculty of Medicine Ankara Turkey

Department of Surgery Chinese University of Hong Kong Hong Kong Special Administrative Region China

Department of Surgery Cliniques Universitaires Saint Luc Bruxelles Belgium

Department of Surgery CVMC CHU Nancy Brabois Université de Lorraine Nancy France

Department of Surgery Eugenideio Hospital Athens Greece

Department of Surgery Faculty of Medicine Universitas Andalas Padang City Indonesia

Department of Surgery General Surgery Unit S Stefano Hospital Prato Italy

Department of Surgery General University Hospital of Patras Patras Greece

Department of Surgery Hadassah Medical Center Faculty of Medicine Hebrew University of Jerusalem Jerusalem Israel

Department of Surgery Klaipeda University Hospital Klaipeda Lithuania

Department of Surgery Maulana Azad Medical College New Delhi India

Department of Surgery National Hospital Kandy Kandy Sri Lanka

Department of Surgery National University Hospital Singapore

Department of Surgery NSCB Medical College Jabalpur India

Department of Surgery Saint Andrew Hospital of Patras Patras Greece

Department of Surgery Saint John of God Hospital Salzburg Austria

Department of Surgery Sapienza University of Rome Rome Italy

Department of Surgery Tampere University Hospital Tampere Finland

Department of Surgery Tseung Kwan O Hospital Hong Kong Special Administrative Region China

Department of Surgery Universidad de Antioquia CEXCA Centro de Excelencia en Enfermedades de Cabeza y Cuello Medellín Colombia

Department of Surgery University Hospital of Heraklion Medical School University of Crete Crete Greece

Department of Surgery University of Nebraska Medical Center Omaha NE USA

Department of Surgery University of Toronto Toronto ON Canada

Department of Surgical Oncological and Oral Sciences University of Palermo Palermo Italy

Department of Surgical Oncology St Elisabeth Cancer Institute Medical Faculty of Comenius University Bratislava Slovakia

Department of Surgical Oncology University Hospital Georgi Stranski Faculty of Medicine Medical University of Pleven Pleven Bulgaria

Department of Surgical Sciences and Integrated Diagnostics University of Genoa Genova Italy

Department of Surgical Sciences Sapienza University of Rome Rome Italy

Department of Surgical Sciences University of Cagliari Cagliari Italy

Department of Thoracic and Endocrine Surgery Geneva University Hospitals and University of Geneva Geneva Switzerland

Department of Thoracic Surgery 424 General Military Hospital Thessaloniki Greece

Department of Thoracic Surgery Mohammed 5 Military Teaching Hospital Rabat Morocco

Department of Thyroid Surgery REA Hospital Athens Greece

Department of Thyroid Surgery The 1st Affiliated Hospital of Jinan University Guangzhou China

Department of Visceral Surgery and Medicine Inselspital Bern University Hospital University of Bern Bern Switzerland

Dipartimento di Chirurgia Pietro Valdoni Policlinico Umberto 1 Sapienza Rome Italy

Division of Endocrine Surgery Department of Gastroenterologic Endocrine Metabolic and Nephro Urologic Sciences Fondazione Policlinico Universitario Agostino Gemelli IRCCS Rome Italy

Division of Endocrine Surgery General Surgery Department Ege University Hospital Izmir Turkey

Division of Endocrinology Diabetes and Metabolism Department of Internal Medicine The Ohio State University Wexner Medical Center Columbus OH USA

Division of General Surgery Section of Endocrine and Diabetic Foot Surgery Fabia Mater Hospital Rome Italy

Division of Surgical Oncology Department of Surgery Dr Cipto Mangunkusumo General Hospital Jakarta Indonesia

Elias University Emergency Hospital Carol Davila University of Medicine and Pharmacy Bucharest Romania

Endocrine and Metabolic Surgery Bhargav Endocrine Hospital Vijayawada India

Endocrine Surgery Department of General Surgery Waikato Hospital Hamilton New Zealand

Endocrine Surgery Department Saint Petersburg State University Hospital Saint Petersburg Russia

Endocrine Surgery Diakonie Klinikum Stuttgart Stuttgart Germany

Endocrine Surgery Unit Department of Surgery National Institute for Medical Sciences and Nutrition Mexico City Mexico

Endocrine Surgery Unit Department of Surgery Oncology and Gastroenterology University of Padova Padova Italy

Endocrine Surgery Unit University Hospital of Pisa Pisa Italy

Endocrine Surgery Unit University of Perugia Santa Maria Hospital Terni Italy

Endocrine Surgery University Hospital Center of Central Lisbon Hospital Curry Cabral Lisboa Portugal

Endocrinology and Nutrition Hospital Regional Universitario Málaga Spain

Endocrinology Department Granollers General Hospital Barcelona Spain

Endocrinology Department Unidad Asistencial Dr César Milstein Buenos Aires Argentina

ENT Department University Hospital of Larissa Larissa Greece

Faculty of Medicine University of Colombo Colombo Sri Lanka

Galilee Medical Center Azrieli Faculty of Medicine Bar Ilan University Safed Israel

General and Endocrine Surgery CHU Poitiers Poitiers France

General Surgery Department Universitat de Barcelona Hospital Clínic de Barcelona Barcelona Spain

General Surgery Hospital Universitario Principe de Asturias Alcala de Henares Spain

General Surgery Kahramanmaras Sutcu Imam University Faculty of Medicine Kahramanmaras Türkiye

General Surgery Unit Department of Medicine and Surgery Parma University Hospital Parma Italy

General Surgery University of Health Sciences Kanuni Sultan Suleyman Training and Research Hospital Istanbul Türkiye

Head and Neck Cancer Medical Oncology Department Istituto Nazionale Tumori IRCCS Fondazione G Pascale Napoli Italy

Head and Neck Department Hospital de Oncología Centro Médico Nacional Siglo XXI Mexico City Mexico

Head and Neck Department Oncologos del Occidente Universidad de Caldas Manizales Colombia

Head and Neck Surgery Brest University Hospital Brest France

Head and Neck Surgery Department Hospital Ana Nery Santa Cruz do Sul Brazil

Head and Neck Surgery Hospital Universitario Nacional de Colombia Bogotá DC Colombia

Health Research and Innovation Science Center Faculty of Health Sciences Klaipeda University Klaipeda Lithuania

Institute of Pathology and Forensic Medicine Medical Military Academy Belgrade Serbia

National Cancer Institute of Mexico Mexico City Mexico

Oncology Center Medica Sur Hospital Mexico City Mexico

Otolaryngology and Head and Neck Surgery Centre Hospitalier Universitaire Vaudois Lausanne Switzerland

Otolaryngology Department Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran

Otolaryngology Midlands Regional Hospital Tullamore Tullamore Ireland

Otorhinolaryngology Unit Azienda USL IRCCS di Reggio Emilia Reggio Emilia Italy

School of Medicine Belgrade Serbia

Service of Endocrinology Hospital Privado Universitario de Córdoba Córdoba Argentina

South Infirmary Victoria University Hospital Cork Ireland

Surgery Bitenc Ljubljana Slovenia

Surgery Department 'A' Ibn Sina Hospital Medical School Mohammed 5 University Rabat Morocco

Surgical Oncology Mansoura University Mansoura Egypt

Surgical Oncology Tula's General Hospital Tula de Allende Mexico

Surgical Pathology Department Instituto de Patologia de Araçatuba Araçatuba Brazil

The Royal Melbourne Hospital and Epworth Hospital Melbourne VIC Australia

Thoracic Surgery Azienda Ospedaliera di Perugia Perugia Italy

Thyroid and Parathyroid Surgery Unit Otolaryngology Unit ASST Santi Paolo e Carlo Department of Health Sciences Università degli Studi di Milano Milan Italy

Thyroid Unit Hospital de Clínicas de Porto Alegre and Federal University of Rio Grande do Sul Porto Alegre Brazil

Unit of Endocrine Surgery AOU Mater Domini Catanzaro Italy

Unit of Endocrine Surgery Head and Neck Parc Tauli Hospital Universitari Sabadell Spain

UOC Chirurgia Endocrina e Metabolica Fondazione Policlinico Universitario A Gemelli IRCCS Rome Italy

References provided by Crossref.org

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$a Medas, Fabio $u Department of Surgical Sciences, University of Cagliari, Cagliari, Italy. Electronic address: fabiomedas@unica.it
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$a Effect of the COVID-19 pandemic on surgery for indeterminate thyroid nodules (THYCOVID): a retrospective, international, multicentre, cross-sectional study / $c F. Medas, C. Dobrinja, EA. Al-Suhaimi, J. Altmeier, S. Anajar, AE. Arikan, I. Azaryan, L. Bains, G. Basili, H. Bolukbasi, M. Bononi, F. Borumandi, MB. Bozan, G. Brenta, L. Brunaud, M. Brunner, A. Buemi, GL. Canu, F. Cappellacci, SB. Cartwright, I. Castells Fusté, B. Cavalheiro, G. Cavallaro, A. Chala, SYB. Chan, J. Chaplin, MS. Cheema, C. Chiapponi, MG. Chiofalo, E. Chrysos, A. D'Amore, M. de Cillia, C. De Crea, N. de Manzini, LL. de Matos, L. De Pasquale, P. Del Rio, MS. Demarchi, M. Dhiwakar, G. Donatini, JM. Dora, V. D'Orazi, VK. Doulatram Gamgaram, V. Eismontas, EH. Kabiri, HO. El Malki, I. Elzahaby, O. Enciu, A. Eskander, F. Feroci, D. Figueroa-Bohorquez, D. Filis, G. François, P. Frías-Fernández, A. Gamboa-Dominguez, V. Genc, D. Giordano, A. Gómez-Pedraza, G. Graceffa, J. Griffin, SC. Guerreiro, K. Gupta, KK. Gupta, A. Gurrado, J. Hajiioannou, T. Hakala, WA. Harahap, L. Hargitai, D. Hartl, A. Hellmann, J. Hlozek, VT. Hoang, M. Iacobone, N. Innaro, O. Ioannidis, JHI. Jang, JC. Xavier-Junior, M. Jovanovic, RM. Kaderli, F. Kakamad, K. Kaliszewski, M. Karamanliev, H. Katoh, A. Košec, B. Kovacevic, LP. Kowalski, R. Králik, SK. Yadav, A. Kumorová, S. Lampridis, K. Lasithiotakis, JC. Leclere, EKF. Leong, MK. Leow, JY. Lim, LS. Lino-Silva, SYW. Liu, NP. Llorach, CP. Lombardi, J. López-Gómez, E. Lori, L. Quintanilla-Dieck, R. Lucchini, A. Madani, D. Manatakis, I. Markovic, G. Materazzi, H. Mazeh, G. Mercante, GY. Meyer-Rochow, O. Mihaljevic, JA. Miller, M. Minuto, M. Monacelli, F. Mulita, B. Mullineris, JL. Muñoz-de-Nova, F. Muradás Girardi, S. Nader, T. Napadon, C. Nastos, C. Offi, O. Ronen, L. Oragano, A. Orois, Y. Pan, E. Panagiotidis, RB. Panchangam, T. Papavramidis, PK. Parida, A. Paspala, ÒV. Pérez, S. Petrovic, M. Raffaelli, CF. Ramacciotti, T. Ratia Gimenez, Á. Rivo Vázquez, JL. Roh, L. Rossi, A. Sanabria, A. Santeerapharp, A. Semenov, S. Seneviratne, A. Serdar, P. Sheahan, SC. Sheppard, RL. Slotcavage, C. Smaxwil, SY. Kim, S. Sorrenti, E. Spartalis, C. Sriphrapradang, M. Testini, Y. Turk, G. Tzikos, K. Vabalayte, K. Vargas-Osorio, RS. Vázquez Rentería, D. Velázquez-Fernández, SMP. Vithana, L. Yücel, ED. Yulian, P. Zahradnikova, P. Zarogoulidis, E. Ziablitskaia, A. Zolotoukho, PG. Calò, THYCOVID Collaboration Group
520    9_
$a BACKGROUND: Since its outbreak in early 2020, the COVID-19 pandemic has diverted resources from non-urgent and elective procedures, leading to diagnosis and treatment delays, with an increased number of neoplasms at advanced stages worldwide. The aims of this study were to quantify the reduction in surgical activity for indeterminate thyroid nodules during the COVID-19 pandemic; and to evaluate whether delays in surgery led to an increased occurrence of aggressive tumours. METHODS: In this retrospective, international, cross-sectional study, centres were invited to participate in June 22, 2022; each centre joining the study was asked to provide data from medical records on all surgical thyroidectomies consecutively performed from Jan 1, 2019, to Dec 31, 2021. Patients with indeterminate thyroid nodules were divided into three groups according to when they underwent surgery: from Jan 1, 2019, to Feb 29, 2020 (global prepandemic phase), from March 1, 2020, to May 31, 2021 (pandemic escalation phase), and from June 1 to Dec 31, 2021 (pandemic decrease phase). The main outcomes were, for each phase, the number of surgeries for indeterminate thyroid nodules, and in patients with a postoperative diagnosis of thyroid cancers, the occurrence of tumours larger than 10 mm, extrathyroidal extension, lymph node metastases, vascular invasion, distant metastases, and tumours at high risk of structural disease recurrence. Univariate analysis was used to compare the probability of aggressive thyroid features between the first and third study phases. The study was registered on ClinicalTrials.gov, NCT05178186. FINDINGS: Data from 157 centres (n=49 countries) on 87 467 patients who underwent surgery for benign and malignant thyroid disease were collected, of whom 22 974 patients (18 052 [78·6%] female patients and 4922 [21·4%] male patients) received surgery for indeterminate thyroid nodules. We observed a significant reduction in surgery for indeterminate thyroid nodules during the pandemic escalation phase (median monthly surgeries per centre, 1·4 [IQR 0·6-3·4]) compared with the prepandemic phase (2·0 [0·9-3·7]; p<0·0001) and pandemic decrease phase (2·3 [1·0-5·0]; p<0·0001). Compared with the prepandemic phase, in the pandemic decrease phase we observed an increased occurrence of thyroid tumours larger than 10 mm (2554 [69·0%] of 3704 vs 1515 [71·5%] of 2119; OR 1·1 [95% CI 1·0-1·3]; p=0·042), lymph node metastases (343 [9·3%] vs 264 [12·5%]; OR 1·4 [1·2-1·7]; p=0·0001), and tumours at high risk of structural disease recurrence (203 [5·7%] of 3584 vs 155 [7·7%] of 2006; OR 1·4 [1·1-1·7]; p=0·0039). INTERPRETATION: Our study suggests that the reduction in surgical activity for indeterminate thyroid nodules during the COVID-19 pandemic period could have led to an increased occurrence of aggressive thyroid tumours. However, other compelling hypotheses, including increased selection of patients with aggressive malignancies during this period, should be considered. We suggest that surgery for indeterminate thyroid nodules should no longer be postponed even in future instances of pandemic escalation. FUNDING: None.
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$a Dobrinja, Chiara $u Department of Medical and Surgical Sciences, University of Trieste, Cattinara Teaching Hospital, Trieste, Italy
700    1_
$a Al-Suhaimi, Ebtesam Abdullah $u Biology Department, College of Science, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
700    1_
$a Altmeier, Julia $u Endocrine Surgery, Diakonie-Klinikum Stuttgart, Stuttgart, Germany
700    1_
$a Anajar, Said $u Department of Otolaryngology-Head and Neck Surgery, Cheikh Khalifa International University Hospital, Mohammed VI University of Health Sciences, Casablanca, Morocco
700    1_
$a Arikan, Akif Enes $u Department of General Surgery, Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul, Türkiye
700    1_
$a Azaryan, Irina $u Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, USA
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$a Bains, Lovenish $u Department of Surgery, Maulana Azad Medical College, New Delhi, India
700    1_
$a Basili, Giancarlo $u Azienda USL Toscana Nord-Ovest, UOSD Chirurgia della Tiroide, Toscana, Italy
700    1_
$a Bolukbasi, Hakan $u General Surgery, University of Health Sciences, Kanuni Sultan Suleyman Training and Research Hospital, Istanbul, Türkiye
700    1_
$a Bononi, Marco $u Dipartimento di Chirurgia Pietro Valdoni, Policlinico Umberto I Sapienza, Rome, Italy
700    1_
$a Borumandi, Farzad $u Department of Oral and Maxillofacial Surgery, University Hospitals Sussex NHS Foundation Trust, St Richard's Hospital, Chichester and Worthing Hospital, Worthing, UK
700    1_
$a Bozan, Mehmet Buğra $u General Surgery, Kahramanmaras Sutcu Imam University, Faculty of Medicine, Kahramanmaras, Türkiye
700    1_
$a Brenta, Gabriela $u Endocrinology Department, Unidad Asistencial Dr César Milstein, Buenos Aires, Argentina
700    1_
$a Brunaud, Laurent $u Department of Surgery CVMC, CHU Nancy-Brabois, Université de Lorraine, Nancy, France
700    1_
$a Brunner, Maximilian $u Department of General and Visceral Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
700    1_
$a Buemi, Antoine $u Department of Surgery, Cliniques Universitaires Saint Luc, Bruxelles, Belgium
700    1_
$a Canu, Gian Luigi $u Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
700    1_
$a Cappellacci, Federico $u Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
700    1_
$a Cartwright, Sara Burchfield $u Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
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$a Castells Fusté, Ignasi $u Endocrinology Department, Granollers General Hospital, Barcelona, Spain
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$a Cavalheiro, Beatriz $u Departamento de Cirurgia de Cabeça e Pescoço, Hospital São Camilo Oncologia-Instituto Brasileiro de Controle do Câncer, São Paulo, Brazil
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$a Cavallaro, Giuseppe $u Department of Surgery, Sapienza University of Rome, Rome, Italy
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$a Chala, Andres $u Head and Neck Department Oncologos del Occidente, Universidad de Caldas, Manizales, Colombia
700    1_
$a Chan, Shun Yan Bryant $u Department of Surgery, Tseung Kwan O Hospital, Hong Kong Special Administrative Region, China
700    1_
$a Chaplin, John $u Department of Otolaryngology Head and Neck Surgery, Auckland City Hospital, Auckland, New Zealand
700    1_
$a Cheema, Mustafa Sajjad $u CMH Lahore Medical College and Institute of Dentistry, Lahore, Pakistan
700    1_
$a Chiapponi, Costanza $u Department of General, Visceral, Cancer and Transplant Surgery, University Hospital Cologne, Cologne, Germany; Department of Endocrine Surgery, Evangelisches Klinikum Cologne Weyertal, Cologne, Germany
700    1_
$a Chiofalo, Maria Grazia $u Head and Neck Cancer Medical Oncology Department, Istituto Nazionale Tumori, IRCCS Fondazione G Pascale, Napoli, Italy
700    1_
$a Chrysos, Emmanuel $u Department of Surgery, University Hospital of Heraklion, Medical School, University of Crete, Crete, Greece
700    1_
$a D'Amore, Annamaria $u Division of Endocrine Surgery, Department of Gastroenterologic, Endocrine-Metabolic and Nephro-Urologic Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
700    1_
$a de Cillia, Michael $u Department of Surgery, Saint John of God Hospital, Salzburg, Austria
700    1_
$a De Crea, Carmela $u UOC Chirurgia Endocrina e Metabolica, Fondazione Policlinico Universitario A Gemelli IRCCS, Rome, Italy
700    1_
$a de Manzini, Nicolò $u Department of Medical and Surgical Sciences, University of Trieste, Cattinara Teaching Hospital, Trieste, Italy
700    1_
$a de Matos, Leandro Luongo $u Department of Head and Neck Surgery, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
700    1_
$a De Pasquale, Loredana $u Thyroid and Parathyroid Surgery Unit-Otolaryngology Unit, ASST Santi Paolo e Carlo, Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
700    1_
$a Del Rio, Paolo $u General Surgery Unit, Department of Medicine and Surgery, Parma University Hospital, Parma, Italy
700    1_
$a Demarchi, Marco Stefano $u Department of Thoracic and Endocrine Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
700    1_
$a Dhiwakar, Muthuswamy $u Department of Otolaryngology-Head and Neck Surgery, Kovai Medical Center and Hospital, Coimbatore, India
700    1_
$a Donatini, Gianluca $u General and Endocrine Surgery, CHU Poitiers, Poitiers, France
700    1_
$a Dora, Jose Miguel $u Thyroid Unit, Hospital de Clínicas de Porto Alegre and Federal University of Rio Grande do Sul, Porto Alegre, Brazil
700    1_
$a D'Orazi, Valerio $u Department of Surgical Sciences, Sapienza University of Rome, Rome, Italy; Division of General Surgery-Section of Endocrine and Diabetic Foot Surgery, "Fabia Mater" Hospital, Rome, Italy
700    1_
$a Doulatram Gamgaram, Viyey Kishore $u Endocrinology and Nutrition, Hospital Regional Universitario, Málaga, Spain
700    1_
$a Eismontas, Vitalijus $u Department of Surgery, Klaipeda University Hospital, Klaipeda, Lithuania; Health Research and Innovation Science Center, Faculty of Health Sciences, Klaipeda University, Klaipeda, Lithuania
700    1_
$a Kabiri, El Hassane $u Department of Thoracic Surgery, Mohammed V Military Teaching Hospital, Rabat, Morocco
700    1_
$a El Malki, Hadj Omar $u Surgery Department 'A', Ibn Sina Hospital, Medical School, Mohammed V University, Rabat, Morocco
700    1_
$a Elzahaby, Islam $u Surgical Oncology, Mansoura University, Mansoura, Egypt
700    1_
$a Enciu, Octavian $u Elias University Emergency Hospital, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
700    1_
$a Eskander, Antoine $u Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, ON, Canada
700    1_
$a Feroci, Francesco $u Department of Surgery, General Surgery Unit, S Stefano Hospital, Prato, Italy
700    1_
$a Figueroa-Bohorquez, David $u Head and Neck Surgery, Hospital Universitario Nacional de Colombia, Bogotá DC, Colombia
700    1_
$a Filis, Dimitrios $u Department of Surgery, Saint Andrew Hospital of Patras, Patras, Greece
700    1_
$a François, Gorostidi $u Otolaryngology and Head and Neck Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
700    1_
$a Frías-Fernández, Pedro $u Surgical Oncology, Tula's General Hospital, Tula de Allende, Mexico
700    1_
$a Gamboa-Dominguez, Armando $u Departamento de Patología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
700    1_
$a Genc, Volkan $u Department of Surgery, Ankara University Faculty of Medicine, Ankara, Turkey
700    1_
$a Giordano, Davide $u Otorhinolaryngology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
700    1_
$a Gómez-Pedraza, Antonio $u National Cancer Institute of Mexico, Mexico City, Mexico
700    1_
$a Graceffa, Giuseppa $u Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
700    1_
$a Griffin, James $u Otolaryngology, Midlands Regional Hospital Tullamore, Tullamore, Ireland
700    1_
$a Guerreiro, Sofia Cuco $u Endocrine Surgery, University Hospital Center of Central Lisbon, Hospital Curry Cabral, Lisboa, Portugal
700    1_
$a Gupta, Karan $u Department of Head and Neck Surgery, Medanta, Gurugram, India
700    1_
$a Gupta, Keshav Kumar $u Department of ENT, University Hospitals Birmingham NHS Trust, Birmingham, UK
700    1_
$a Gurrado, Angela $u Department of Precision and Regenerative Medicine and Ionian Area, University of Bari "Aldo Moro", Bari, Italy
700    1_
$a Hajiioannou, Jiannis $u ENT Department, University Hospital of Larissa, Larissa, Greece
700    1_
$a Hakala, Tommi $u Department of Surgery, Tampere University Hospital, Tampere, Finland
700    1_
$a Harahap, Wirsma Arif $u Department of Surgery, Faculty of Medicine, Universitas Andalas, Padang City, Indonesia
700    1_
$a Hargitai, Lindsay $u Department of General Surgery, Division of Visceral Surgery, Medical University Vienna, Vienna, Austria
700    1_
$a Hartl, Dana $u Department of Surgery, Anesthesia and Interventional Radiology, Head and Neck Oncology Service, Thyroid Surgery Unit, Gustave Roussy, Villejuif, France
700    1_
$a Hellmann, Andrzej $u Department of General, Endocrine and Transplant Surgery, Medical University of Gdańsk, Gdańsk, Poland
700    1_
$a Hlozek, Jiri $u Department of Otorhinolaryngology and Maxillofacial Surgery, Military University Hospital, Prague, Czech Republic; Third Faculty of Medicine, Charles University, Prague, Czech Republic
700    1_
$a Hoang, Van Trung $u Department of Radiology, Thien Hanh Hospital, Buon Ma Thuot, Vietnam
700    1_
$a Iacobone, Maurizio $u Endocrine Surgery Unit, Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
700    1_
$a Innaro, Nadia $u Unit of Endocrine Surgery, AOU Mater Domini, Catanzaro, Italy
700    1_
$a Ioannidis, Orestis $u Fourth Department of Surgery, Medical School, Aristotle University of Thessaloniki, General Hospital "Georgios Papanikolaou", Thessaloniki, Greece
700    1_
$a Jang, J H Isabelle $u Department of Otorhinolaryngology-Head and Neck Surgery, Singapore General Hospital, Singapore
700    1_
$a Xavier-Junior, Jose Candido $u Surgical Pathology Department, Instituto de Patologia de Araçatuba, Araçatuba, Brazil
700    1_
$a Jovanovic, Milan $u Clinic for Endocrine Surgery, University Clinical Center of Serbia, Belgrade, Serbia; School of Medicine, Belgrade, Serbia
700    1_
$a Kaderli, Reto Martin $u Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
700    1_
$a Kakamad, Fahmi $u Department of Scientific Affairs, Smart Health Tower, Sulaimani, Iraq
700    1_
$a Kaliszewski, Krzysztof $u Department of General, Minimally Invasive and Endocrine Surgery, Wroclaw Medical University, Wroclaw, Poland
700    1_
$a Karamanliev, Martin $u Department of Surgical Oncology, University Hospital "Georgi Stranski", Faculty of Medicine, Medical University of Pleven, Pleven, Bulgaria
700    1_
$a Katoh, Hiroshi $u Department of Breast and Endocrine Surgery, Kitasato University Hospital, Sagamihara, Japan
700    1_
$a Košec, Andro $u Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital Center Sestre Milosrdnice, Zagreb, Croatia
700    1_
$a Kovacevic, Bozidar $u Institute of Pathology and Forensic Medicine, Medical Military Academy, Belgrade, Serbia
700    1_
$a Kowalski, Luiz Paulo $u Department of Head and Neck Surgry and Otorhinolaryngology, AC Camargo Cancer Center, São Paulo, Brazil
700    1_
$a Králik, Robert $u Department of Surgical Oncology, St Elisabeth Cancer Institute, Medical Faculty of Comenius University, Bratislava, Slovakia
700    1_
$a Yadav, Sanjay Kumar $u Department of Surgery, NSCB Medical College, Jabalpur, India
700    1_
$a Kumorová, Adriána $u Clinic of Otorhinolaryngology and Head and Neck Surgery, Central Military Hospital Ružomberok, Ružomberok, Slovakia
700    1_
$a Lampridis, Savvas $u Department of Thoracic Surgery, 424 General Military Hospital, Thessaloniki, Greece
700    1_
$a Lasithiotakis, Konstantinos $u Department of Surgery, University Hospital of Heraklion, Medical School, University of Crete, Crete, Greece
700    1_
$a Leclere, Jean-Christophe $u Head and Neck Surgery, Brest University Hospital, Brest, France
700    1_
$a Leong, Eugene Kwong Fei $u Department of Surgery, National University Hospital, Singapore
700    1_
$a Leow, Melvin Khee-Shing $u Department of Endocrinology, Tan Tock Seng Hospital, Singapore
700    1_
$a Lim, James Y $u Department of Surgery and Otolaryngology, Oregon Health and Science University, Portland, OR, USA
700    1_
$a Lino-Silva, Leonardo S $u Oncology Center, Medica Sur Hospital, Mexico City, Mexico
700    1_
$a Liu, Shirley Yuk Wah $u Department of Surgery, Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
700    1_
$a Llorach, Núria Perucho $u Unit of Endocrine Surgery Head and Neck Parc Tauli, Hospital Universitari, Sabadell, Spain
700    1_
$a Lombardi, Celestino Pio $u Division of Endocrine Surgery, Department of Gastroenterologic, Endocrine-Metabolic and Nephro-Urologic Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
700    1_
$a López-Gómez, Javier $u Head and Neck Department, Hospital de Oncología Centro Médico Nacional Siglo XXI, Mexico City, Mexico
700    1_
$a Lori, Eleonora $u Department of Surgical Sciences, Sapienza University of Rome, Rome, Italy
700    1_
$a Quintanilla-Dieck, Lourdes $u Department of Pediatric Otolaryngology, Head and Neck Surgery, Oregon Health and Science University, Portland, OR, USA
700    1_
$a Lucchini, Roberta $u Endocrine Surgery Unit, University of Perugia, Santa Maria Hospital, Terni, Italy
700    1_
$a Madani, Amin $u Department of Surgery, University of Toronto, Toronto, ON, Canada
700    1_
$a Manatakis, Dimitrios $u Second Department of Surgery, Athens Naval and Veterans Hospital, Athens, Greece
700    1_
$a Markovic, Ivan $u Clinic for Surgical Oncology, Institute of Oncology and Radiology of Serbia, Belgrade, Serbia
700    1_
$a Materazzi, Gabriele $u Endocrine Surgery Unit, University Hospital of Pisa, Pisa, Italy
700    1_
$a Mazeh, Haggi $u Department of Surgery, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
700    1_
$a Mercante, Giuseppe $u Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Department of Otorhinolaryngology-Head and Neck Surgery, IRCCS Humanitas Research Hospital, Rozzano, Italy
700    1_
$a Meyer-Rochow, Goswin Yason $u Endocrine Surgery, Department of General Surgery, Waikato Hospital, Hamilton, New Zealand
700    1_
$a Mihaljevic, Olgica $u Department of Pathophysiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
700    1_
$a Miller, Julie A $u The Royal Melbourne Hospital and Epworth Hospital, Melbourne, VIC, Australia
700    1_
$a Minuto, Michele $u Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genova, Italy
700    1_
$a Monacelli, Massimo $u Thoracic Surgery, Azienda Ospedaliera di Perugia, Perugia, Italy
700    1_
$a Mulita, Francesk $u Department of Surgery, General University Hospital of Patras, Patras, Greece
700    1_
$a Mullineris, Barbara $u Department of General, Emergency and New Technologies, University Hospital of Modena, Baggiovara Civil Hospital, Modena, Italy
700    1_
$a Muñoz-de-Nova, José Luis $u Department of General and Digestive Surgery, Hospital Universitario de La Princesa, Madrid, Spain
700    1_
$a Muradás Girardi, Fábio $u Head and Neck Surgery Department, Hospital Ana Nery, Santa Cruz do Sul, Brazil
700    1_
$a Nader, Saki $u Otolaryngology Department, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
700    1_
$a Napadon, Tangjaturonrasme $u Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
700    1_
$a Nastos, Constantinos $u Third Department of Surgery, Attikon University Hospital, Athens, Greece
700    1_
$a Offi, Chiara $u Department of Endocrine and Ultrasound-Guided Surgery, Ospedale del Mare, ASl Napoli 1 Centro, Naples, Italy
700    1_
$a Ronen, Ohad $u Galilee Medical Center, Azrieli Faculty of Medicine Bar Ilan University, Safed, Israel
700    1_
$a Oragano, Luigi $u ASL VCO, Ospedale San Biagio, Domodossola, Italy
700    1_
$a Orois, Aida $u Department of Endocrinology and Nutrition, Hospital Universitari Mútua Terrassa, Terrassa, Spain
700    1_
$a Pan, Yongqin $u Department of Thyroid Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
700    1_
$a Panagiotidis, Emmanouil $u Department of Nuclear Medicine/PET CT, Theageneio Cancer Hospital of Thessaloniki, Thessaloniki, Greece
700    1_
$a Panchangam, Ramakanth Bhargav $u Endocrine and Metabolic Surgery, Bhargav Endocrine Hospital, Vijayawada, India
700    1_
$a Papavramidis, Theodosios $u First Propedeutic Department of Surgery, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
700    1_
$a Parida, Pradipta Kumar $u Department of ENT-Head and Neck Surgery, All India Institute of Medical Sciences, Bhubaneswar, India
700    1_
$a Paspala, Anna $u Department of Surgery, Eugenideio Hospital, Athens, Greece
700    1_
$a Pérez, Òscar Vidal $u General Surgery Department, Universitat de Barcelona, Hospital Clínic de Barcelona, Barcelona, Spain
700    1_
$a Petrovic, Sabrina $u Surgery Bitenc, Ljubljana, Slovenia
700    1_
$a Raffaelli, Marco $u UOC Chirurgia Endocrina e Metabolica, Fondazione Policlinico Universitario A Gemelli IRCCS, Rome, Italy
700    1_
$a Ramacciotti, Constanza Fernanda $u Service of Endocrinology, Hospital Privado Universitario de Córdoba, Córdoba, Argentina
700    1_
$a Ratia Gimenez, Tomas $u General Surgery, Hospital Universitario Principe de Asturias, Alcala de Henares, Spain
700    1_
$a Rivo Vázquez, Ángel $u Department of General and Digestive Surgery, Division of Endocrine Surgery, Complexo Hospitalario Universitario de Vigo, Vigo, Spain
700    1_
$a Roh, Jong-Lyel $u Department of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
700    1_
$a Rossi, Leonardo $u Endocrine Surgery Unit, University Hospital of Pisa, Pisa, Italy
700    1_
$a Sanabria, Alvaro $u Department of Surgery, Universidad de Antioquia, CEXCA Centro de Excelencia en Enfermedades de Cabeza y Cuello, Medellín, Colombia
700    1_
$a Santeerapharp, Alena $u Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
700    1_
$a Semenov, Arseny $u Endocrine Surgery Department, Saint Petersburg State University Hospital, Saint Petersburg, Russia
700    1_
$a Seneviratne, Sanjeewa $u Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
700    1_
$a Serdar, Altinay $u Department of Endocrin Pathology Unit, University of Health Sciences, Faculty of Medicine, Bakırköy Dr Sadi Konuk Training and Research Hospital, Istanbul, Turkey
700    1_
$a Sheahan, Patrick $u South Infirmary Victoria University Hospital, Cork, Ireland
700    1_
$a Sheppard, Sean C $u Department of Otorhinolaryngology and Head and Neck Surgery, University Hospital of Nîmes, Nîmes, France
700    1_
$a Slotcavage, Rachel L $u Department of Surgery and Department of Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
700    1_
$a Smaxwil, Constantin $u Endocrine Surgery, Diakonie-Klinikum Stuttgart, Stuttgart, Germany
700    1_
$a Kim, Soo Young $u Department of Surgery, Ajou University School of Medicine, Suwon, South Korea
700    1_
$a Sorrenti, Salvatore $u Department of Surgical Sciences, Sapienza University of Rome, Rome, Italy
700    1_
$a Spartalis, Eleftherios $u Department of Thyroid Surgery, REA Hospital, Athens, Greece
700    1_
$a Sriphrapradang, Chutintorn $u Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
700    1_
$a Testini, Mario $u Department of Precision and Regenerative Medicine and Ionian Area, University of Bari "Aldo Moro", Bari, Italy
700    1_
$a Turk, Yigit $u Division of Endocrine Surgery, General Surgery Department, Ege University Hospital, Izmir, Turkey
700    1_
$a Tzikos, George $u First Propedeutic Department of Surgery, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
700    1_
$a Vabalayte, Kristina $u Endocrine Surgery Department, Saint Petersburg State University Hospital, Saint Petersburg, Russia
700    1_
$a Vargas-Osorio, Kelly $u Clinical University Hospital Santiago de Compostela University of Santiago de Compostela, Santiago de Compostela, Spain
700    1_
$a Vázquez Rentería, Rafael Sebastián $u Departamento de Cabeza y Cuello, Instituto Nacional de Cancerología, Mexico City, Mexico
700    1_
$a Velázquez-Fernández, David $u Endocrine Surgery Unit, Department of Surgery, National Institute for Medical Sciences and Nutrition, Mexico City, Mexico
700    1_
$a Vithana, Sanura Malinda Pallegoda $u Department of Surgery, National Hospital Kandy, Kandy, Sri Lanka
700    1_
$a Yücel, Levent $u Department of Otorhinolaryngology, University of Health Sciences, Gülhane Research and Training Hospital, Ankara, Turkey
700    1_
$a Yulian, Erwin Danil $u Division of Surgical Oncology, Department of Surgery, Dr Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
700    1_
$a Zahradnikova, Petra $u Department of Paediatric Surgery, Medical Faculty of Comenius University, National Institute of Children's Diseases, Bratislava, Slovakia
700    1_
$a Zarogoulidis, Paul $u Third Surgery Department, Aristotle University of Thessaloniki, Thessaloniki, Greece
700    1_
$a Ziablitskaia, Evgeniia $u Central Research Laboratory, Clinical Medical Multidisciplinary Center of St Luke VI Vernadsky Crimean Federal University, Simferopol, Russia
700    1_
$a Zolotoukho, Anna $u Endocrine Surgery Department, Saint Petersburg State University Hospital, Saint Petersburg, Russia
700    1_
$a Calò, Pietro Giorgio $u Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
710    2_
$a THYCOVID Collaboration Group
773    0_
$w MED00186388 $t The lancet. Diabetes & endocrinology $x 2213-8595 $g Roč. 11, č. 6 (2023), s. 402-413
856    41
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