title: The action of retinoic acid on psoriatic skin.
mesh_terms: D000328:Adult; D001706:Biopsy; D004261:DNA Replication / Q000187:drug effects; D005260:Female; D006801:Humans; D008297:Male; D011565:Psoriasis / Q000188:drug therapy* / Q000473:pathology; D012867:Skin / Q000187:drug effects; D014212:Tretinoin / Q000494:pharmacology / Q000627:therapeutic use*; D014801:Vitamin A / Q000031:analogs & derivatives*
chemical_list: D014801:Vitamin A; D014212:Tretinoin