[Rare complications in severe ulcerative colitis].
DORADO
J
J
PIEGARIV
D003092:Colitis; D003093:Colitis, Ulcerative / Q000150:complications*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006470:Hemorrhage; D006801:Humans
COLITIS, ULCERATIVE/complications; HEMORRHAGE, GASTROINTESTINAL/etiology