title: Dark-field electron microscopy of unstained and unshadowed DNA.
mesh_terms: D002021:Buffers; D003580:Cytochromes; D004247:DNA / Q000032:analysis*; D004279:DNA, Viral / Q000032:analysis; D004492:Edetic Acid; D005559:Formamides; D006651:Histocytochemistry; D007739:L Cells; D008854:Microscopy, Electron; D008928:Mitochondria / Q000032:analysis; D013194:Staining and Labeling
chemical_list: D002021:Buffers; D003580:Cytochromes; D004279:DNA, Viral; D005559:Formamides; D004247:DNA; D004492:Edetic Acid