1. Paterson, M. C. & Smith, P. J. A. Rev. Genet. 13, 291–318 (1979).
2. Kraemer, K. H. in DNA Repair Processes, 37–71 (Miami Symp. Spec., 1977).
3. McFarlin, D. E., Strober, W. & Waldmann, T. A. Medicine 61, 281–314 (1972).
4. Sweet, H. O. Mouse News Lett. 65, 27 (1981).
5. Green, M. C. Genetic Variants and Strains of the Laboratory Mouse (Fischer, New York, 1981).