1. Event history analysis;Allison,1984
2. Bovine leukemia: Facts and hypotheses derived from the study of an infectious cancer;Burny;Adv. Vet. Sci. Comp. Med.,1988
3. Prevalence of bovine leukemia virus infection in Florida;Burridge;JAVMA,1981
4. Factors affecting the infectivity of lymphocytes from cattle with bovine leukosis virus;Buxton;Can. J. Comp. Med.,1984
5. Regression and live-tables;Cox;J. R. Stat. Soc. Ser. B,1972