title: Symposium on "Vitamin A in nutrition and disease." Historical introduction.
mesh_terms: D000818:Animals; D001717:Birds; D002338:Carotenoids / Q000378:metabolism; D002621:Chemistry; D004285:Dogs; D005060:Europe; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D006801:Humans; D009755:Night Blindness / Q000209:etiology; D009751:Nutritional Requirements; D051381:Rats; D013552:Swine; D014481:United States; D014801:Vitamin A / Q000266:history / Q000378:metabolism*; D014802:Vitamin A Deficiency / Q000266:history; D014985:Xerophthalmia / Q000209:etiology
chemical_list: D014801:Vitamin A; D002338:Carotenoids