1. HLA and juvenile psoriatic arthritis;Ansell;Br J Rheumatol,1993
2. A multicentre pilot study of sulphasalazine in juvenile chronic arthritis;Ansell;Clin Exp Rheumatol,1991
3. Epidemiological aspects of psoriasis and arthritis;Baker;Br J Dermatol,1966
4. New York symposium on population studies in the rheumatic diseases: New diagnostic criteria;Bennett;Bull Rheum Dis,1967
5. Reiter’s disease and HLA 27;Brewerton;Lancet,1973