title: Genome structure of the defective avian sarcoma virus PRCIV.
mesh_terms: D001355:Alpharetrovirus / Q000235:genetics*; D000818:Animals; D001483:Base Sequence; D002642:Chick Embryo; D003673:Defective Viruses / Q000235:genetics*; D005814:Genes, Viral; D006378:Helper Viruses / Q000235:genetics*; D009693:Nucleic Acid Hybridization; D009843:Oligoribonucleotides / Q000032:analysis; D012367:RNA, Viral / Q000235:genetics*; D006163:Ribonuclease T1; D014764:Viral Proteins / Q000235:genetics
chemical_list: D009843:Oligoribonucleotides; D012367:RNA, Viral; D014764:Viral Proteins; D006163:Ribonuclease T1