Manometry vs. pH step-up.
Mattox
H E
HE
Richter
J E
JE
D004566:Electrodes; D004943:Esophagogastric Junction / Q000503:physiopathology*; D005764:Gastroesophageal Reflux / Q000175:diagnosis*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008365:Manometry