title: Biosynthesis and metabolism of retinoic acid.
mesh_terms: D000818:Animals; D007928:Lethal Dose 50; D051379:Mice; D051381:Rats; D013997:Time Factors; D014212:Tretinoin / Q000096:biosynthesis / Q000378:metabolism*; D014801:Vitamin A / Q000031:analogs & derivatives*
chemical_list: D014801:Vitamin A; D014212:Tretinoin