title: Diagnosis and follow-up of patients with achalasia.
authors.forename: Edgar
authors.initials: E
authors.lastname: Achkar
authors.forename: Joel
authors.initials: J
authors.lastname: Richter
mesh_terms: D003680:Deglutition Disorders / Q000209:etiology*; D003937:Diagnosis, Differential; D004931:Esophageal Achalasia / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D006801:Humans