Comparative virulence of the mammary tumor agent from different sources: qualitative and quantitative differences.
D000818:Animals; D001943:Breast Neoplasms; D006801:Humans; D015674:Mammary Neoplasms, Animal; D008325:Mammary Neoplasms, Experimental; D009858:Oncogenic Viruses; D014774:Virulence
MAMMARY NEOPLASMS, EXPERIMENTAL; TUMOR VIRUSES