title: Letter: Gastrointestinal hormones.
mesh_terms: D004381:Duodenal Ulcer / Q000209:etiology / Q000601:surgery; D004386:Duodenum / Q000503:physiopathology; D005763:Gastroenterostomy / Q000009:adverse effects; D005768:Gastrointestinal Hormones / Q000378:metabolism*; D006801:Humans; D010437:Peptic Ulcer / Q000503:physiopathology / Q000601:surgery*; D011183:Postoperative Complications / Q000503:physiopathology; D011708:Pylorus / Q000601:surgery; D013270:Stomach / Q000294:innervation; D013276:Stomach Ulcer / Q000601:surgery; D014628:Vagotomy
chemical_list: D005768:Gastrointestinal Hormones