title: 24-h pH monitoring for gastroesophageal reflux disease: already standard but not yet gold?
authors.forename: E M
authors.initials: EM
authors.lastname: Quigley
mesh_terms: D004947:Esophagus / Q000378:metabolism / Q000503:physiopathology*; D005764:Gastroesophageal Reflux / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008991:Monitoring, Physiologic