1. High association of an HL-A antigen, W27, with ankylosing spondylitis;Schlosstein;N Engl J Med.,1972
2. Ankylosing spondylitis and HL-A27;Brewerton;Lancet.,1973
3. HL-A 27 in Reiter's syndrome and psoriatic arthritis: a genetic factor in disease susceptibility and expression;McClusky;J Rheumatol.,1974
4. HL-A W27: a clue to the diagnosis and pathogenesis of Reiter's syndrome;Morris;N Engl J Med.,1974
5. Reiter's disease and HLA-27;Brewerton;Lancet.,1973