RT Journal Article SR Electronic T1 HLA studies in psoriatic arthritis: current situation and future needs. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 4 OP 6 VO 30 IS 1 A1 Gladman, Dafna D A1 Farewell, Vernon T YR 2003 UL http://www.jrheum.org/content/30/1/4.abstract AB