title: Electrophysiological studies on the motility of esophageal achalasia.
mesh_terms: D000328:Adult; D004576:Electromyography; D004931:Esophageal Achalasia / Q000175:diagnosis / Q000503:physiopathology*; D004947:Esophagus / Q000503:physiopathology*; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D008297:Male; D008365:Manometry; D008875:Middle Aged; D010528:Peristalsis