1) Brewerton, D. A., Caffrey, M., Hart, F.D., James, D.C.O., Nicholls, A. and Sturrock, R.D.: Ankylosing spondylitis and HLA-B 27. Lancet, I: 904-907, 1973.
2) Nepom, B. S., Nepom, G. T., Mickelson, E., Schaller, J.G. Antonelli, P. and Hansen, J.A.: Specific HLA-DR 4-associated histocompatibility molecules characterize patients with seropositive juvenile rheumatoid arthritis. J. Clin. Invest., 74: 287 -291, 1984.
3) Svejgaard, A., Platz, P. and Ryder, I. P.: HLA and disease 1982-A survey. Immunol. Rev., 70: 193-218, 1983.
4) Terasaki, P. I., Kaslick, R. S., West, T. L. and Chasens, A. I.: Low HL-A 2 frequency and periodontitis. Tissue Antigens, 5: 286-288, 1975
5) Kaslick, R. S., West, T. L., Chasens, A. I., Terasaki, P. I., Lazzara, R. and Weinborg, S.: Association between HL-A 2 antigen and various periodontal diseases in young adults. J. Dent. Res., 54: 424, 1975.