AKR murine leukemia virusLeukemia Virus, MurineMice, Inbred AKRMoloney murine leukemia virusLeukemia, ExperimentalFriend murine leukemia virusAbelson murine leukemia virusLeukemia Virus, FelineRauscher VirusRetroviridae InfectionsLeukemia Virus, BovineMink Cell Focus-Inducing VirusesLeukemiaRetroviridaeCell LineGenes, ViralVirus ReplicationDNA, ViralMice, Inbred StrainsRNA-Directed DNA PolymeraseGammaretrovirusThymus NeoplasmsReceptors, VirusPreleukemiaMolecular Sequence DataBase SequenceProvirusesGene Products, gagLymphomaTumor Virus InfectionsLeukemia, Myeloid, AcuteVirus Integration