MANAGEMENT OF PERFORATED ULCER OF THE STOMACH AND DUODENUM.
D004381:Duodenal Ulcer; D004386:Duodenum; D010439:Peptic Ulcer Perforation; D013276:Stomach Ulcer; D013514:Surgical Procedures, Operative; D014456:Ulcer
DUODENAL ULCER; PEPTIC ULCER PERFORATION; STOMACH ULCER; SURGERY, OPERATIVE