title: Buoyant density sedimentation of macromolecules in sodium iothalamate density gradients.
mesh_terms: D002499:Centrifugation, Density Gradient / Q000379:methods*; D003016:Clostridium perfringens / Q000032:analysis; D003090:Coliphages / Q000032:analysis / Q000648:ultrastructure*; D004267:DNA Viruses / Q000032:analysis / Q000648:ultrastructure; D004269:DNA, Bacterial / Q000032:analysis*; D004279:DNA, Viral / Q000032:analysis*; D007483:Iothalamic Acid; D008433:Mathematics; D008837:Micrococcus / Q000032:analysis; D008854:Microscopy, Electron; D009154:Mutation; D012367:RNA, Viral / Q000032:analysis; D012845:Sindbis Virus / Q000032:analysis; D013045:Species Specificity
chemical_list: D004269:DNA, Bacterial; D004279:DNA, Viral; D012367:RNA, Viral; D007483:Iothalamic Acid