title: [Diagnostic possibilities of directed endoscopic pH-metry].
mesh_terms: D000328:Adult; D004381:Duodenal Ulcer / Q000601:surgery*; D019723:Endoscopes; D005745:Gastric Acidity Determination / Q000295:instrumentation*; D006801:Humans; D008875:Middle Aged; D014628:Vagotomy; D014629:Vagotomy, Proximal Gastric
vernacular_title: Diagnosticheskie vozmozhnosti pritsel'noĭ éndoskopicheskoĭ pH-metrii.