title: Psoriatic arthritis.
mesh_terms: D001168:Arthritis / Q000150:complications* / Q000175:diagnosis / Q000276:immunology; D005260:Female; D006801:Humans; D008297:Male; D011565:Psoriasis / Q000150:complications* / Q000175:diagnosis / Q000276:immunology; D013166:Spondylitis / Q000150:complications / Q000175:diagnosis / Q000276:immunology