title: The lower esophageal sphincter.
authors.affiliation: Gastrointestinal Diseases Research Unit and Department of Medicine, Queen's University, Kingston, Ont. patersow@hdh.kari.net
authors.forename: William G
authors.initials: WG
authors.lastname: Paterson
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D004935:Esophageal Diseases / Q000453:epidemiology; D004943:Esophagogastric Junction / Q000033:anatomy & histology / Q000502:physiology* / Q000503:physiopathology; D005764:Gastroesophageal Reflux / Q000503:physiopathology; D006551:Hernia, Hiatal / Q000473:pathology; D006801:Humans; D009129:Muscle Tonus / Q000502:physiology