title: Anticholinergic drugs in duodenal ulcer.
mesh_terms: D002986:Clinical Trials as Topic; D004381:Duodenal Ulcer / Q000188:drug therapy*; D006801:Humans; D010276:Parasympatholytics / Q000627:therapeutic use*; D010919:Placebos / Q000627:therapeutic use
chemical_list: D010276:Parasympatholytics; D010919:Placebos