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Multi-scale imaging by cryo-EM. A) Eukaryotic cells (scale bar 6 μm). B) Prokaryotic cells (scale bar 0.5 μm). C) Isolated organelles, in this case microsomes (scale bar 200 nm). D) Synthetic liposomes (scale bar 100 nm) E) Viruses (scale bar 50 nm). F) Macromolecular complexes (scale bar 25 nm).
