title: The postoperative ulcer.
mesh_terms: D004322:Drainage; D004381:Duodenal Ulcer / Q000503:physiopathology / Q000601:surgery*; D005500:Follow-Up Studies; D005743:Gastrectomy; D005746:Gastric Emptying; D005750:Gastric Juice / Q000378:metabolism; D005763:Gastroenterostomy; D006801:Humans; D011183:Postoperative Complications; D011708:Pylorus / Q000601:surgery; D012008:Recurrence; D014628:Vagotomy / Q000009:adverse effects