title: Acid loss in the human duodenum.
mesh_terms: D000328:Adult; D004386:Duodenum / Q000187:drug effects*; D006801:Humans; D006851:Hydrochloric Acid / Q000494:pharmacology*; D006863:Hydrogen-Ion Concentration; D007419:Intestinal Secretions / Q000187:drug effects*; D008297:Male; D008875:Middle Aged; D009994:Osmolar Concentration
chemical_list: D006851:Hydrochloric Acid