On the systemic mode of action of vitamin A.
D000818:Animals; D002645:Chickens; D004967:Estrogens / Q000494:pharmacology; D005260:Female; D008115:Liver Regeneration; D010057:Oviducts / Q000254:growth & development*; D051381:Rats; D014801:Vitamin A / Q000502:physiology*; D014802:Vitamin A Deficiency / Q000503:physiopathology
D004967:Estrogens; D014801:Vitamin A