1. High association of an HL-A antigen, W27, with ankylosing spondylitis;Schlosstein;N Engl J Med,1973
2. Ankylosing spondylitis and HL-A 27;Brewerton;Lancet,1973
3. Symptoms and signs among relatives of patients with HLA B27 ankylosing spondylitis: correlation between back pain, spinal movement, sacroilitis, and HLA antigens;Christiansen;J Rheumatol Suppl,1977
4. Family studies and HLA typing in ankylosing spondylitis and sacroiliitis;Daneo;J Rheumatol Suppl,1977
5. HLA B27 and the genetics of ankylosing spondylitis;Woodrow;Ann Rheum Dis,1978