Detecting gastroesophageal reflux by pH recording and acid reflux test.
D000328:Adult; D000368:Aged; D004941:Esophagitis / Q000150:complications; D005745:Gastric Acidity Determination; D005750:Gastric Juice / Q000032:analysis; D005764:Gastroesophageal Reflux / Q000150:complications / Q000175:diagnosis*; D006548:Hernia, Diaphragmatic / Q000150:complications; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008722:Methods; D008875:Middle Aged