Avian Sarcoma VirusesSarcoma Viruses, MurineSarcomaSarcoma Viruses, FelineKirsten murine sarcoma virusRous sarcoma virusMoloney murine sarcoma virusSarcoma, ExperimentalHarvey murine sarcoma virusCell Transformation, ViralSarcoma, AvianAlpharetrovirusSarcoma, EwingGammaretrovirusSarcoma, KaposiSarcoma, SynovialSarcoma Virus, Woolly MonkeyMoloney murine leukemia virusDefective VirusesGenes, ViralChick EmbryoRNA VirusesOncogene Protein pp60(v-src)Virus ReplicationRNA, ViralCell Transformation, NeoplasticSarcoma 180Viral ProteinsRetroviridaeVirus CultivationOncogenic VirusesHelper VirusesAvian leukosis virusCell LineVaccinia virusReceptors, VirusDNA, ViralVirus AssemblySimian virus 40Gene Products, gagLeukemia Virus, MurineRetroviridae ProteinsFactor VaMolecular Sequence DataOncogenesVirus SheddingIron CompoundsRNA-Directed DNA PolymeraseVirus DiseasesQuailEpsilonretrovirusAntigens, ViralPlant VirusesSoft Tissue NeoplasmsDNA VirusesNucleic Acid HybridizationLeukemia Virus, FelineSindbis VirusMeasles virusChickensAmino Acid SequenceInfluenza A Virus, H1N1 SubtypeHistiocytic SarcomaVirionRabies virusFibroblastsInfluenza A Virus, H5N1 SubtypeTransfectionOdontogenic CystsGenetic VectorsAvian myeloblastosis virusSarcoma, MyeloidTemperatureInfluenza A Virus, H3N2 SubtypeTranscription, GeneticMolecular WeightHepatitis B virusRepetitive Sequences, Nucleic AcidTumor Virus InfectionsSarcoma, Endometrial StromalWest Nile virusRecombination, GeneticSarcoma, Clear CellParainfluenza Virus 1, HumanVirus IntegrationRespiratory Syncytial VirusesGenes, gagVesicular stomatitis Indiana virusVirus ActivationGene Expression Regulation, ViralMutationViral Plaque AssayVirus LatencyDucksSpecies SpecificityRauscher VirusFriend murine leukemia virusCercopithecus aethiopsAKR murine leukemia virusLeukemia, Experimental