title: [Negative staining of viral suspensions].
mesh_terms: D004267:DNA Viruses / Q000648:ultrastructure*; D009942:Organometallic Compounds; D010772:Phosphotungstic Acid; D012328:RNA Viruses / Q000648:ultrastructure*; D013194:Staining and Labeling / Q000379:methods*; D014501:Uranium
chemical_list: D009942:Organometallic Compounds; D010772:Phosphotungstic Acid; C005460:uranyl acetate; D014501:Uranium
vernacular_title: Estudos sobre a contrastação negativa de suspensões virais.