title: The influence of pentagastrin and secretin on the PH in duodenum.
mesh_terms: D004381:Duodenal Ulcer / Q000188:drug therapy; D004386:Duodenum / Q000502:physiology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007419:Intestinal Secretions / Q000187:drug effects; D010418:Pentagastrin / Q000494:pharmacology*; D010434:Pepsin A / Q000037:antagonists & inhibitors; D012633:Secretin / Q000494:pharmacology* / Q000627:therapeutic use
chemical_list: D012633:Secretin; D010434:Pepsin A; D010418:Pentagastrin