title: Peptic ulcer perforation into the lesser peritoneal sac. 1. A statistical study of 57 collected cases.
authors.forename: M
authors.initials: M
authors.lastname: FELDMAN
mesh_terms: D006801:Humans; D010437:Peptic Ulcer; D010439:Peptic Ulcer Perforation; D010529:Peritoneal Cavity; D010537:Peritoneum