title: Studies on vaccinia virus DNA.
mesh_terms: D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D002501:Centrifugation, Zonal; D003090:Coliphages / Q000302:isolation & purification; D004279:DNA, Viral; D003851:Deoxyribonucleases; D006238:Haploidy; D008854:Microscopy, Electron; D008970:Molecular Weight; D010759:Phosphorus Isotopes; D013936:Thymidine / Q000378:metabolism; D014316:Tritium; D014616:Vaccinia virus; D014776:Virus Cultivation
chemical_list: D002247:Carbon Isotopes; D004279:DNA, Viral; D010759:Phosphorus Isotopes; D014316:Tritium; D003851:Deoxyribonucleases; D013936:Thymidine