title: A combined staining technique developed for virus particle observation in the electron microscope.
mesh_terms: D001435:Bacteriophages / Q000648:ultrastructure; D009522:Newcastle disease virus / Q000648:ultrastructure; D009942:Organometallic Compounds; D009975:Orthomyxoviridae / Q000648:ultrastructure; D010772:Phosphotungstic Acid; D012328:RNA Viruses / Q000648:ultrastructure*; D018139:Simplexvirus / Q000648:ultrastructure; D013194:Staining and Labeling / Q000379:methods*; D014501:Uranium
chemical_list: D009942:Organometallic Compounds; D010772:Phosphotungstic Acid; C005460:uranyl acetate; D014501:Uranium