Variation in the occurrence of erythroblastosis and osteopetrosis induced by virus from individual chickens infected with avian leukosis strain RPL12.
D000818:Animals; D001353:Avian Leukosis / Q000276:immunology*; D002645:Chickens / Q000276:immunology*; D010022:Osteopetrosis / Q000209:etiology / Q000662:veterinary*; D011201:Poultry Diseases / Q000276:immunology*