title: Development of an infectivity assay for mouse mammary-tumor virus.
mesh_terms: D000362:Agar; D000818:Animals; D000941:Antigens; D002499:Centrifugation, Density Gradient; D005260:Female; D005615:Freezing; D007106:Immune Sera; D005779:Immunodiffusion; D007774:Lactation; D008297:Male; D008325:Mammary Neoplasms, Experimental / Q000382:microbiology; D008324:Mammary Tumor Virus, Mouse / Q000276:immunology / Q000302:isolation & purification / Q000472:pathogenicity; D008722:Methods; D051379:Mice; D008892:Milk / Q000382:microbiology*; D011247:Pregnancy; D011817:Rabbits; D013997:Time Factors
chemical_list: D000941:Antigens; D007106:Immune Sera; D000362:Agar