1. Cramer, D. V., Kunz, H. W., and Gill, T. J. III: Immunogenetics. In H. J. Baker, J. R. Lindsey, and S. H. Weisbroth (eds.): Research Applications. The Laboratory Rat, Vol. II, pp. 221?224, Academic Press, New York, 1980
2. Gedde-Dahl, T., Korsnes, L., Thorsby, E., Olaisen, B., Bratlie, A., and Siverts, A.: Pepsinogens: new variant and linkage relationships to chromosome 6 markers. Cytogenet. Cell Genet. 22: 301?303, 1978
3. Samloff, I. M. and Townes, P. L.: Pepsinogens: genetic polymorphism in man. Science 168: 144?145, 1970
4. Szymura, J. M. and Klein, J.: Linkage of a gene controlling urinary pepsinogen with the major histocompatibility complex of the mouse. Immunogenetics 13: 267?271, 1981
5. Taggart, R. T., Miller, R. B., Karn, R. C., Tribble, J. A., Craft, M., Ripberger, J., and Merritt, A. D.: Vertical thin layer slab polyacrylamide gel electrophoresis of selected human polymorphic proteins. In N. Catsimpoolas (ed.): Electrophoresis '78, pp. 231?242, Elsevier/North-Holland, Inc., Amsterdam, 1978