title: Symposium on gastrooesophageal reflux and its complications. 1. Definitions, the antireflux mechanism, and symptoms.
mesh_terms: D004940:Esophageal Stenosis / Q000150:complications; D004943:Esophagogastric Junction / Q000503:physiopathology; D005764:Gastroesophageal Reflux / Q000150:complications / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D006548:Hernia, Diaphragmatic / Q000150:complications; D006801:Humans; D009119:Muscle Contraction; D011187:Posture; D011312:Pressure