[Cultivation of the milk factor (Bittner's virus) in vitro].
D000818:Animals; D001940:Breast; D066298:In Vitro Techniques; D008324:Mammary Tumor Virus, Mouse; D008892:Milk; D009369:Neoplasms / Q000821:virology*; D014780:Viruses / Q000208:ethnology*
NEOPLASMS/virology; VIRUSES/culture