Attempts to obtain virus-free Rous tumors in tissue culture.
D000818:Animals; D001358:Avian Sarcoma Viruses; D006801:Humans; D009858:Oncogenic Viruses; D012107:Research Design; D052736:Rous sarcoma virus; D001357:Sarcoma, Avian
ROUS SARCOMA; ROUS SARCOMA VIRUS