title: Nasogastric tube management.
mesh_terms: D002763:Cholecystectomy; D004209:Disposable Equipment; D004322:Drainage; D005740:Gases; D005743:Gastrectomy; D006801:Humans; D007441:Intubation, Gastrointestinal / Q000295:instrumentation; D011182:Postoperative Care; D011708:Pylorus / Q000601:surgery; D014628:Vagotomy
chemical_list: D005740:Gases