Prolonged pH recording in the study of gastro-oesophageal reflux.
D004381:Duodenal Ulcer / Q000150:complications; D005753:Gastric Mucosa / Q000378:metabolism; D005764:Gastroesophageal Reflux / Q000175:diagnosis* / Q000209:etiology; D006548:Hernia, Diaphragmatic / Q000150:complications; D006801:Humans; D006863:Hydrogen-Ion Concentration; D012636:Secretory Rate; D013997:Time Factors