title: Nutrition classics. Proceeding of the National Academy of Sciences of the United States of America, Volume 46, 1960: The biological function of vitamin A acid: John E. Dowling and George Wald.
mesh_terms: D000818:Animals; D001695:Biology / Q000266:history*; D049673:History, 20th Century; D008404:Massachusetts; D009755:Night Blindness / Q000473:pathology; D051381:Rats; D012160:Retina / Q000378:metabolism / Q000473:pathology; D014212:Tretinoin / Q000378:metabolism*; D014481:United States; D014801:Vitamin A / Q000502:physiology*; D014802:Vitamin A Deficiency / Q000473:pathology
chemical_list: D014801:Vitamin A; D014212:Tretinoin