title: Mapping by competitive hybridization of sequences which differ between endogenous and exogenous chicken leukosis viruses.
mesh_terms: D001354:Avian Leukosis Virus / Q000235:genetics*; D001358:Avian Sarcoma Viruses / Q000235:genetics*; D001483:Base Sequence; D004247:DNA; D005814:Genes, Viral; D009693:Nucleic Acid Hybridization; D012367:RNA, Viral / Q000235:genetics*; D012526:Satellite Viruses / Q000235:genetics*; D013045:Species Specificity
chemical_list: D012367:RNA, Viral; D004247:DNA