Linköping University medical dissertations, ISSN 0345-0082 No. 909
112 stran : tabulky, grafy ; 24 cm
A dissertation abstract. The dissertation focuses on the influence of genetics and environmental factors on inflammatory bowel disease in twins.
Acta radiologica, ISSN 0365-5954 vol. 43, suppl. 427, March 2002
43 s. : il., tab., grafy ; 30 cm