[Significance of biopsy of the small intestines using the Nichidai model].
D000328:Adult; D000368:Aged; D001706:Biopsy / Q000295:instrumentation* / Q000379:methods; D005260:Female; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology; D007421:Intestine, Small / Q000473:pathology*; D008286:Malabsorption Syndromes / Q000473:pathology; D008297:Male; D008875:Middle Aged