Tretinoin in acne: retin-A.
D000152:Acne Vulgaris / Q000188:drug therapy*; D005231:Fatty Acids, Unsaturated / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use; D006801:Humans; D014801:Vitamin A / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*
D005231:Fatty Acids, Unsaturated; D014801:Vitamin A