Psoriatic arthritis.
D000893:Anti-Inflammatory Agents / Q000627:therapeutic use*; D001168:Arthritis / Q000188:drug therapy* / Q000276:immunology; D002986:Clinical Trials as Topic; D006801:Humans; D008727:Methotrexate / Q000627:therapeutic use; D011701:PUVA Therapy; D011565:Psoriasis / Q000188:drug therapy* / Q000276:immunology; D014801:Vitamin A / Q000627:therapeutic use
D000893:Anti-Inflammatory Agents; D014801:Vitamin A; D008727:Methotrexate