title: Inactivation of Rous Sarcoma Virus preparations detected by density gradient centrifugation.
mesh_terms: D001358:Avian Sarcoma Viruses; D002499:Centrifugation, Density Gradient; D006358:Hot Temperature; D007106:Immune Sera; D011489:Protein Denaturation; D013997:Time Factors; D014774:Virulence
chemical_list: D007106:Immune Sera