KASICH, A M Prolonged achlorhydria in duodenal ulcer from intramuscular administration of anticholinergic drugs. [electronic resource] - The American journal of digestive diseases Oct 1962 - 886-91 p. digital Publication Type: Journal Article ISSN: 0002-9211 Standard No.: 10.1007/BF02231866 doi Subjects--Topical Terms: AchlorhydriaCholinergic AntagonistsDuodenal UlcerHumansMethanthelineParasympatholyticsQuaternary Ammonium Compounds