title: Letter: Glucagon and duodenal ulcer.
mesh_terms: D000368:Aged; D004381:Duodenal Ulcer / Q000139:chemically induced*; D005934:Glucagon / Q000009:adverse effects*; D006801:Humans; D008297:Male; D009130:Muscle, Smooth / Q000187:drug effects; D010195:Pancreatitis / Q000188:drug therapy
chemical_list: D005934:Glucagon