title: The diagnosis and misdiagnosis of Achalasia: it does not have to be so difficult.
authors.forename: Joel E
authors.initials: JE
authors.lastname: Richter
mesh_terms: D003951:Diagnostic Errors; D004931:Esophageal Achalasia / Q000175:diagnosis*; D005764:Gastroesophageal Reflux / Q000175:diagnosis*; D006801:Humans