[Clinical studies of duodenal neoplasms].
D000231:Adenocarcinoma, Papillary / Q000473:pathology; D000328:Adult; D000368:Aged; D004379:Duodenal Neoplasms / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D005336:Fiber Optic Technology; D006801:Humans; D008297:Male; D008875:Middle Aged