title: Serial passage of avian tumour viruses in ducks and Japanese quail.
mesh_terms: D001355:Alpharetrovirus / Q000145:classification*; D000818:Animals; D001354:Avian Leukosis Virus / Q000145:classification; D001358:Avian Sarcoma Viruses / Q000145:classification; D001717:Birds; D002642:Chick Embryo; D002999:Clone Cells; D010856:Columbidae; D004372:Ducks; D009368:Neoplasm Transplantation; D009374:Neoplasms, Experimental; D009858:Oncogenic Viruses / Q000145:classification; D010641:Phenotype; D013997:Time Factors; D014422:Turkeys