title: Biological activity and separation of a leukaemogenic virus from murine sarcoma virus-Harvey (MSV-H).
mesh_terms: D000818:Animals; D017988:Gammaretrovirus / Q000472:pathogenicity*; D007106:Immune Sera; D007668:Kidney / Q000473:pathology; D007942:Leukemia, Experimental / Q000209:etiology*; D007945:Leukemia, Lymphoid / Q000209:etiology; D008722:Methods; D051379:Mice; D051381:Rats; D012190:Retroviridae / Q000302:isolation & purification*; D012513:Sarcoma, Experimental / Q000473:pathology*; D013163:Splenomegaly / Q000209:etiology
chemical_list: D007106:Immune Sera