A case of ulcerative colitis complicated with acute pancreatitis - SHIRAKABE, Hikoo; MATSUKAWA, Masaaki; NEGORO, Takashi; ARIYAMA, Jo; IKARI, Takaaki; YAMADA, Satoshi; USUI, Yoshiki; KAN, Toushoku; KONDO, Kenji; YOSHIDA, Kunio (Nihon Naika Gakkai Zasshi, 1989)