title: Notes on digestive diseases. 3. The lower esophageal ring.
mesh_terms: D003680:Deglutition Disorders / Q000175:diagnosis; D003937:Diagnosis, Differential; D004940:Esophageal Stenosis / Q000175:diagnosis*; D004943:Esophagogastric Junction; D005764:Gastroesophageal Reflux / Q000175:diagnosis; D006548:Hernia, Diaphragmatic / Q000150:complications; D006801:Humans