title: Abnormal proximal esophageal function in achalasia.
authors.forename: D O
authors.initials: DO
authors.lastname: Castell
authors.forename: J A
authors.initials: JA
authors.lastname: Castell
mesh_terms: D004931:Esophageal Achalasia / Q000503:physiopathology*; D004943:Esophagogastric Junction / Q000503:physiopathology*; D004947:Esophagus / Q000503:physiopathology*; D006801:Humans; D009119:Muscle Contraction / Q000502:physiology; D009126:Muscle Relaxation / Q000502:physiology; D009130:Muscle, Smooth / Q000503:physiopathology; D011312:Pressure