title: Genetic structure of avian acute leukemia viruses.
mesh_terms: D001355:Alpharetrovirus / Q000235:genetics; D001354:Avian Leukosis Virus / Q000145:classification / Q000235:genetics*; D002472:Cell Transformation, Viral; D003673:Defective Viruses / Q000235:genetics; D005814:Genes, Viral; D006378:Helper Viruses / Q000235:genetics; D009843:Oligoribonucleotides / Q000032:analysis; D012367:RNA, Viral / Q000235:genetics; D014764:Viral Proteins / Q000235:genetics; D014779:Virus Replication
chemical_list: D009843:Oligoribonucleotides; D012367:RNA, Viral; D014764:Viral Proteins