Contrast in unstained sections: a comparison of bright and dark field electron microscopy.
D000818:Animals; D003624:Darkness; D007739:L Cells / Q000648:ultrastructure; D008027:Light; D008099:Liver / Q000648:ultrastructure; D051379:Mice; D008854:Microscopy, Electron / Q000379:methods*; D013194:Staining and Labeling