title: A simplified technique for determination of the vitamin A composition in biological fluids.
mesh_terms: D000042:Absorption; D000535:Aluminum; D002338:Carotenoids / Q000032:analysis; D004952:Esters; D008722:Methods; D014801:Vitamin A / Q000032:analysis*
chemical_list: D004952:Esters; D014801:Vitamin A; D002338:Carotenoids; D000535:Aluminum