title: The sentinel clot and invisible vessel: pathologic anatomy of bleeding peptic ulcer.
mesh_terms: D001158:Arteries / Q000473:pathology*; D004564:Electrocoagulation; D004724:Endoscopy; D006801:Humans; D053685:Laser Therapy; D010438:Peptic Ulcer Hemorrhage / Q000473:pathology* / Q000601:surgery; D012008:Recurrence; D012306:Risk; D013270:Stomach / Q000098:blood supply