[Endoscopy of the duodenum and small intestine].
D000368:Aged; D001706:Biopsy; D004378:Duodenal Diseases / Q000175:diagnosis; D004386:Duodenum; D019723:Endoscopes; D004724:Endoscopy; D005260:Female; D005336:Fiber Optic Technology; D006801:Humans; D007410:Intestinal Diseases / Q000175:diagnosis; D007421:Intestine, Small; D008297:Male; D008875:Middle Aged