title: The infectivity of polyoma virus DNA for mouse embryo cells in the presence of diethylaminoethyl-dextran.
mesh_terms: D002499:Centrifugation, Density Gradient; D046508:Culture Techniques; D003588:Cytopathogenic Effect, Viral; D004279:DNA, Viral / Q000302:isolation & purification; D003911:Dextrans; D011120:Polyomavirus
chemical_list: D004279:DNA, Viral; D003911:Dextrans