title: 'Functional heartburn': symptom for achalasia or hypertensive lower oesophageal sphincter?
authors.forename: F Martin
authors.initials: FM
authors.lastname: Riegler
authors.forename: J
authors.initials: J
authors.lastname: Lenglinger
authors.forename: Enrico P
authors.initials: EP
authors.lastname: Cosentini
mesh_terms: D004931:Esophageal Achalasia / Q000150:complications*; D005764:Gastroesophageal Reflux / Q000150:complications*; D006356:Heartburn / Q000209:etiology*; D006801:Humans; D006863:Hydrogen-Ion Concentration