title: Focus on duodenitis.
mesh_terms: D002927:Cimetidine / Q000627:therapeutic use; D003937:Diagnosis, Differential; D004381:Duodenal Ulcer / Q000150:complications / Q000175:diagnosis / Q000188:drug therapy; D004382:Duodenitis / Q000175:diagnosis* / Q000188:drug therapy; D004724:Endoscopy; D006801:Humans; D010890:Pirenzepine / Q000627:therapeutic use
chemical_list: D010890:Pirenzepine; D002927:Cimetidine