title: Variation of long-terminal-repeat size in molecular clones of the BALB/c endogenous ecotropic murine leukemia virus.
mesh_terms: D000818:Animals; D003001:Cloning, Molecular; D004279:DNA, Viral / Q000235:genetics / Q000302:isolation & purification; D005814:Genes, Viral; D009052:Leukemia Virus, Murine / Q000235:genetics*; D051379:Mice; D008807:Mice, Inbred BALB C; D012091:Repetitive Sequences, Nucleic Acid
chemical_list: D004279:DNA, Viral