Oncogenic RNA viruses.
D000818:Animals; D002471:Cell Transformation, Neoplastic; D006801:Humans; D009369:Neoplasms / Q000382:microbiology*; D012190:Retroviridae / Q000302:isolation & purification; D014170:Transformation, Genetic; D014412:Tumor Virus Infections / Q000635:transmission; D014779:Virus Replication