Letter: Safety of retinoic acid in acne therapy.
D000152:Acne Vulgaris / Q000188:drug therapy*; D000818:Animals; D006224:Cricetinae; D006801:Humans; D051379:Mice; D051381:Rats; D013723:Teratogens; D014212:Tretinoin / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D014801:Vitamin A / Q000031:analogs & derivatives*
D013723:Teratogens; D014801:Vitamin A; D014212:Tretinoin