title: THE DIAGNOSTIC VALUE OF THE TWENTY-FOUR HOUR PH GASTRIC ANALYSIS--A PRELIMINARY REPORT.
mesh_terms: D035843:Biomedical Research; D004415:Dyspepsia; D005745:Gastric Acidity Determination; D006801:Humans; D006863:Hydrogen-Ion Concentration
keywords: CLINICAL RESEARCH; DYSPEPSIA; GASTRIC ACIDITY DETERMINATION; HYDROGEN-ION CONCENTRATION