1. Ankylosing spondylitis and HLA 27;Brewerton, D.A.; Caffrey, M.; Hart, F.D.; James, D.C.O.; Nicholls, A.; Sturrock, R.D.;Lancet,1973
2. HLA 27 and arthropathies associated with ulcerative colitis and psoriasis;Lancet,1974
3. Heel lesions of rheumatoid arthritis;Bywaters, E.G.L.;Annals ofthe Rheumatic Diseases,1954
4. HL-A antigens in psoriasis with special reference to the clinical type, age of onset, exacerbations after respiratory infections and occurrence of arthritis;Karvonen, J.;Annals ofClinical Research,1975
5. HL-A W27 in psoriatic arthropathy;Metzger, A.L.; Morris, R.I.; Bluestone, R.; Terasaki, P.;Arthritis and Rheumatism,1975