28th British congress of obstetrics and gynaecology : Harrogate, UK : 30 June - 3 July 1998 : book of abstracts (Blackwell Science, 1998)
British journal of obstetrics and gynaecology, ISSN 0140-7686 Supplement Vol. 105. 17
Keywords: gynekologie a porodnictví; Obstetrics; gynekologie; Gynecology; porodnictví