On the mechanism of beta-carotene conversion to vitamin A.
D000818:Animals; D002338:Carotenoids / Q000378:metabolism*; D051381:Rats; D014801:Vitamin A / Q000096:biosynthesis*; D019207:beta Carotene
D019207:beta Carotene; D014801:Vitamin A; D002338:Carotenoids