Relative importance of genotype and type of mammary tumor virus on mammary tumorigenesis in mice.
D000818:Animals; D005260:Female; D005838:Genotype; D008325:Mammary Neoplasms, Experimental / Q000209:etiology* / Q000235:genetics; D008324:Mammary Tumor Virus, Mouse; D051379:Mice; D011247:Pregnancy