pH measurement in the oesophagus.
Bennett
J R
JR
D004566:Electrodes; D004947:Esophagus / Q000502:physiology*; D005764:Gastroesophageal Reflux / Q000175:diagnosis* / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D006863:Hydrogen-Ion Concentration; D011312:Pressure