title: Nucleotide sequence of the long terminal repeat of the avian retrovirus RAV-1: evolution of avian retroviruses.
mesh_terms: D001358:Avian Sarcoma Viruses / Q000235:genetics*; D001483:Base Sequence; D005075:Biological Evolution; D005814:Genes, Viral; D012091:Repetitive Sequences, Nucleic Acid; D014158:Transcription, Genetic