title: [Diagnostic procedures in achalasia].
mesh_terms: D004931:Esophageal Achalasia / Q000145:classification / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004945:Esophagoscopy; D004947:Esophagus / Q000187:drug effects; D006801:Humans; D008365:Manometry; D008688:Methacholine Compounds / Q000494:pharmacology; D011859:Radiography
chemical_list: D008688:Methacholine Compounds
vernacular_title: Diagnostische Massnahmen bei der Achalasie.