Susecptibility of ducklings to different strains of Rous sarcoma virus and to other avian tumour viruses.
D000818:Animals; D001358:Avian Sarcoma Viruses / Q000472:pathogenicity*; D001947:Breeding; D002645:Chickens; D004372:Ducks; D001357:Sarcoma, Avian / Q000209:etiology*; D014776:Virus Cultivation