title: The supercoiling of papilloma virus DNA.
mesh_terms: D001965:Bromides / Q000494:pharmacology; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004279:DNA, Viral / Q000032:analysis*; D027383:Papillomaviridae / Q000032:analysis*; D014461:Ultracentrifugation
chemical_list: D001965:Bromides; D004279:DNA, Viral