title: An electron microscopic analysis of DNA of bacteriophages Vi.
mesh_terms: D004279:DNA, Viral / Q000032:analysis*; D005069:Evaluation Studies as Topic; D008722:Methods; D008854:Microscopy, Electron; D008970:Molecular Weight; D012483:Salmonella Phages / Q000032:analysis*
chemical_list: D004279:DNA, Viral