1. Observations on the nature of a genetic cellular resistance to avian tumor viruses;Crittenden;J. Natl. Cancer Inst.,1968
2. Genetic influence of the Rs locus on susceptibility to avian tumor viruses. I. Neoplasms induced by RPL 12 and three strains of Rous sarcoma virus;Crittenden;J. Natl. Cancer Inst.,1965
3. Two loci controlling genetic cellular resistance to avian leukosis-sarcoma viruses;Crittenden;J. Virol.,1967
4. Properties of a strain of Rous sarcoma virus that infects mammals;Dougherty;Natl. Cancer Inst. Monograph,1964
5. Host-controlled variation in NDV;Drake;Virology,1962