title: An immunofluorescent focus assay for gross leukemia virus.
mesh_terms: D000406:AKR murine leukemia virus / Q000032:analysis*; D000818:Animals; D000906:Antibodies; D000941:Antigens; D046508:Culture Techniques; D004622:Embryo, Mammalian; D005455:Fluorescent Antibody Technique; D007106:Immune Sera; D008223:Lymphoma; D051379:Mice; D009500:Neutralization Tests; D014776:Virus Cultivation
chemical_list: D000906:Antibodies; D000941:Antigens; D007106:Immune Sera