title: Clinical esophageal pH recording: a technical review for practice guideline development.
authors.affiliation: Department of Medicine Northwestern, University Medical School Chicago, Illinois, USA.
authors.forename: P J
authors.initials: PJ
authors.lastname: Kahrilas
authors.forename: E M
authors.initials: EM
authors.lastname: Quigley
mesh_terms: D000553:Ambulatory Care; D004947:Esophagus / Q000378:metabolism*; D005764:Gastroesophageal Reflux / Q000175:diagnosis / Q000628:therapy; D006801:Humans; D006859:Hydrogen / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D017410:Practice Guidelines as Topic
chemical_list: D006859:Hydrogen