[pH measurements in the esophagus].
D004935:Esophageal Diseases / Q000175:diagnosis; D004947:Esophagus / Q000502:physiology*; D005764:Gastroesophageal Reflux / Q000175:diagnosis; D006548:Hernia, Diaphragmatic / Q000175:diagnosis; D006801:Humans; D006863:Hydrogen-Ion Concentration
pH-Messungen im Osophagus.