title: Fractionation of polyoma virus DNA on hydroxyapatite: dependence on tertiary structure.
mesh_terms: D003461:Crystallography; D004279:DNA, Viral / Q000032:analysis*; D006882:Hydroxyapatites; D010759:Phosphorus Isotopes; D011120:Polyomavirus / Q000032:analysis*; D013936:Thymidine; D014316:Tritium; D014461:Ultracentrifugation
chemical_list: D004279:DNA, Viral; D006882:Hydroxyapatites; D010759:Phosphorus Isotopes; D014316:Tritium; D013936:Thymidine