title: Ambulatory esophageal pH monitoring in patients with motility disorders.
authors.forename: P F
authors.initials: PF
authors.lastname: Crookes
authors.forename: T R
authors.initials: TR
authors.lastname: DeMeester
mesh_terms: D015154:Esophageal Motility Disorders / Q000175:diagnosis*; D006801:Humans; D006863:Hydrogen-Ion Concentration