title: Age changes in small-intestinal mucosa.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000375:Aging; D006801:Humans; D007413:Intestinal Mucosa / Q000166:cytology*; D007583:Jejunum / Q000166:cytology*; D008875:Middle Aged