title: Some biophysical properties of frog viruses and their DNA.
mesh_terms: D000818:Animals; D001001:Anura; D002642:Chick Embryo; D004267:DNA Viruses; D004279:DNA, Viral / Q000032:analysis*; D006564:Herpesviridae; D007680:Kidney Neoplasms; D013936:Thymidine; D014316:Tritium; D014461:Ultracentrifugation; D014780:Viruses
chemical_list: D004279:DNA, Viral; D014316:Tritium; D013936:Thymidine