Lower esophageal sphincter as a barrier to gastroesophageal reflux before and after antireflux surgery.
D001285:Atropine; D001626:Bethanechol Compounds; D004943:Esophagogastric Junction / Q000502:physiology / Q000503:physiopathology; D005764:Gastroesophageal Reflux / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery*; D006801:Humans; D011312:Pressure; D011877:Radionuclide Imaging; D013997:Time Factors
D001626:Bethanechol Compounds; D001285:Atropine