title: [Changes in the degree of resistance to homologous virus in clones obtained from chronically infected cultures].
mesh_terms: D005537:Aphthovirus / Q000254:growth & development; D002460:Cell Line; D002999:Clone Cells / Q000276:immunology*; D004770:Enterovirus / Q000254:growth & development; D006801:Humans; D007928:Lethal Dose 50; D007938:Leukemia / Q000276:immunology; D014776:Virus Cultivation
vernacular_title: Izuchenie strpeni rezistentnosti k gomologicheskomu virusu v klonakh, poluchennykh iz khronicheski infektsirovannoĭ kul'tury