title: Plasma carotenoids as a useful indicator of vitamin A status.
mesh_terms: D000293:Adolescent; D000328:Adult; D000349:Africa; D000367:Age Factors; D002338:Carotenoids / Q000097:blood*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D014801:Vitamin A / Q000097:blood / Q000378:metabolism*
chemical_list: D014801:Vitamin A; D002338:Carotenoids