title: Endoscopic diagnosis of duodenal neoplasms.
mesh_terms: D000368:Aged; D001285:Atropine; D001706:Biopsy; D003937:Diagnosis, Differential; D004379:Duodenal Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D019723:Endoscopes; D004724:Endoscopy; D005260:Female; D005336:Fiber Optic Technology; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006396:Hematemesis / Q000209:etiology; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications; D008297:Male; D008614:Meperidine; D008875:Middle Aged; D009362:Neoplasm Metastasis; D010190:Pancreatic Neoplasms / Q000150:complications
chemical_list: D001285:Atropine; D008614:Meperidine