AKR murine leukemia virusLeukemia Virus, MurineLymphoma, Non-HodgkinMice, Inbred AKRMoloney murine leukemia virusMastocytomaSarcoma, ExperimentalGerminomaFriend murine leukemia virusTesticular NeoplasmsLeukemia, ExperimentalLeukemia Virus, BovineAbelson murine leukemia virusLeukemia Virus, FelineRauscher VirusRetroviridae InfectionsLeukemiaEnzootic Bovine LeukosisRetroviridaeCell LineGranulosa Cell TumorVirus ReplicationDNA, ViralMink Cell Focus-Inducing VirusesMolecular Sequence DataGiant Cell Tumor of BoneGenes, ViralBase SequenceRNA-Directed DNA PolymeraseLeukemia, LymphoidReceptors, VirusCell Line, TumorThymus NeoplasmsMice, Inbred StrainsTumor Virus InfectionsProvirusesTumor Cells, CulturedLymphomaGiant Cell TumorsGene Products, gagGammaretrovirusLeukemia, Myeloid, AcuteNeoplasms, ExperimentalVirus IntegrationMice, Inbred BALB CRNA, ViralLeukemia Virus, Gibbon ApeNeoplasms, Germ Cell and EmbryonalEthnologyViral Proteins