Dubochet, J A new preparation method for dark-field electron microscopy of biomacromolecules. [electronic resource] - Journal of ultrastructure research Apr 1971 - 147-67 p. digital Publication Type: Journal Article ISSN: 0022-5320 Standard No.: 10.1016/s0022-5320(71)80148-x doi Subjects--Topical Terms: AcetatesAdsorptionAlkanesAminesCarbonColiphagesCytochromesDNA, BacterialDNA, ViralElectrodesEscherichia coli--cytologyMacromolecular SubstancesMethodsMicroscopy, Electron--instrumentationMicroscopy, Phase-ContrastPhotomicrographyPolystyrenesQuaternary Ammonium CompoundsRNA NucleotidyltransferasesUranium