Diagnosis of achalasia.
D000230:Adenocarcinoma / Q000175:diagnosis; D000328:Adult; D000368:Aged; D003680:Deglutition Disorders / Q000209:etiology; D003937:Diagnosis, Differential; D004931:Esophageal Achalasia / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004940:Esophageal Stenosis / Q000175:diagnosis; D004945:Esophagoscopy; D005260:Female; D006548:Hernia, Diaphragmatic / Q000175:diagnosis; D006801:Humans; D008297:Male; D008365:Manometry; D008688:Methacholine Compounds; D008875:Middle Aged; D010610:Pharyngeal Neoplasms / Q000150:complications; D011127:Polyps / Q000150:complications; D011859:Radiography; D013274:Stomach Neoplasms / Q000175:diagnosis
D008688:Methacholine Compounds