1. Aho, K., Ahvonen, P., Lassus, A., Sievers, K., Tilikainen, A.: HL-A antigen 27 and reactive arthritis. Lancet, 1973 II, 157
2. Albert, E.D., Schattenkirchner, M., Diem, K., Kuntz, B, Andreas, A., Schießl, B., Wetzmüller, H., Scholz, S.: Association between the HLA system and arthritis psoriatica. Z. Immun.-Forsch. (1976a, in press)
3. Albert, E.D., Rittner, Ch., Lorenz, H., Kuntz, B., Scholz, S.: HLA-Bf haplotype frequencies and linkage disequilibria. Z. Immun.-Forsch. (1976b, in press)
4. Allen, F.H.: Linkage of HL-A and GBG. Vox Sang. (Basel) 27, 382?384 (1974)
5. Bertrams, J., Kuwert, E., Böhme, U., Reis, H.E., Gallmeier, M., Wetter, O., Schmidt, C.G.: HL-A antigens in Hodgkin's disease and multiple myeloma. Tissue Antigens 2, 41?46 (1972)