PRACE DOKTORSKIE - FINLANDIA 552,813 MIKKOLA KARI Surgical treatment of ulcerative colitis : a clinical study : academic dissertation / Kari Mikkola ; [the Second Department of Surgery at Helsinki University Central Hospital, Finland], Medical Faculty at the University of Helsinki. - Helsinki : University of Helsinki, 1996. - 46, [44] s. t wykr. ; 25 cm ISBN 952-90-7636-3