title: Gastrosophageal reflux: some of the mystery remains.
mesh_terms: D004945:Esophagoscopy; D004947:Esophagus / Q000000981:diagnostic imaging; D005764:Gastroesophageal Reflux / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy; D006801:Humans; D011859:Radiography