Achalasia oesophagi and associated diseases.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004931:Esophageal Achalasia / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D004935:Esophageal Diseases / Q000453:epidemiology* / Q000209:etiology; D004938:Esophageal Neoplasms / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011859:Radiography; D012737:Sex Factors; D013997:Time Factors