title: Covalently closed circular duplex DNA of Epstein-Barr virus in a human lymphoid cell line.
mesh_terms: D002499:Centrifugation, Density Gradient; D004270:DNA, Circular / Q000302:isolation & purification / Q000528:radiation effects; D004279:DNA, Viral / Q000302:isolation & purification / Q000528:radiation effects; D004854:Herpesvirus 4, Human / Q000032:analysis*; D006801:Humans; D008214:Lymphocytes / Q000032:analysis*; D008854:Microscopy, Electron; D009690:Nucleic Acid Conformation; D009693:Nucleic Acid Hybridization; D011830:Radiation Effects
chemical_list: D004270:DNA, Circular; D004279:DNA, Viral