Perforation of chronic peptic ulcers after cimetidine.
D000368:Aged; D002927:Cimetidine / Q000009:adverse effects*; D006146:Guanidines / Q000009:adverse effects*; D006801:Humans; D008297:Male; D010437:Peptic Ulcer / Q000188:drug therapy; D010439:Peptic Ulcer Perforation / Q000139:chemically induced*
D006146:Guanidines; D002927:Cimetidine