title: On the applicability of the CASPAR criteria in psoriatic arthritis.
authors.forename: O B
authors.initials: OB
authors.lastname: Pedersen
authors.forename: P
authors.initials: P
authors.lastname: Junker
mesh_terms: D015535:Arthritis, Psoriatic / Q000175:diagnosis*; D004200:Diseases in Twins / Q000175:diagnosis*; D006801:Humans; D012107:Research Design; D018433:Twin Studies as Topic / Q000379:methods