title: Twenty-four-hour oesophageal pH monitoring: advances and controversies.
authors.forename: J S
authors.initials: JS
authors.lastname: de Caestecker
mesh_terms: D002940:Circadian Rhythm; D004341:Drug Evaluation; D004566:Electrodes; D005764:Gastroesophageal Reflux / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008991:Monitoring, Physiologic / Q000295:instrumentation / Q000379:methods*; D012016:Reference Values