Comparison of three mammary tumor viruses in genetically similar susceptible mice.
D000818:Animals; D005260:Female; D008325:Mammary Neoplasms, Experimental / Q000209:etiology*; D008324:Mammary Tumor Virus, Mouse; D051379:Mice; D008805:Mice, Inbred A; D008807:Mice, Inbred BALB C; D008809:Mice, Inbred C3H; D008815:Mice, Inbred Strains; D011247:Pregnancy