BMJ Publishing Group, Annals of the Rheumatic Diseases, 5(67), p. 677-682, 2007
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OBJECTIVE: Psoriasis of early onset (type I; age of onset 40 years). HLA-DRB1*07, in linkage disequilibrium with HLA-Cw*06, was also associated with patients with PsA having type I psoriasis (OR 2.7, 95% CI 2.1, 3.7, p