title: Letter: A double-blind trial of bevonium methylsulphate on gastric acid secretion in man.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001561:Benzilates / Q000494:pharmacology*; D002986:Clinical Trials as Topic; D004381:Duodenal Ulcer / Q000503:physiopathology*; D005750:Gastric Juice / Q000378:metabolism*; D006801:Humans; D008875:Middle Aged; D010276:Parasympatholytics / Q000494:pharmacology*; D010880:Piperidines / Q000494:pharmacology; D010919:Placebos; D012636:Secretory Rate / Q000187:drug effects
chemical_list: D001561:Benzilates; D010276:Parasympatholytics; D010880:Piperidines; D010919:Placebos