title: Rapid rescue of the defective M-MSV genome by the use of cell fusion.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002459:Cell Fusion; D002460:Cell Line; D002474:Cell-Free System; D006224:Cricetinae; D017988:Gammaretrovirus / Q000254:growth & development / Q000302:isolation & purification*; D005827:Genetics, Microbial; D006378:Helper Viruses / Q000472:pathogenicity; D007106:Immune Sera; D051379:Mice; D009500:Neutralization Tests; D010222:Parainfluenza Virus 1, Human / Q000472:pathogenicity*; D011817:Rabbits; D011925:Rauscher Virus; D013194:Staining and Labeling; D013936:Thymidine; D013997:Time Factors; D014316:Tritium; D014529:Uridine; D014779:Virus Replication
chemical_list: D007106:Immune Sera; D014316:Tritium; D013936:Thymidine; D014529:Uridine