title: Nucleoli under the electron microscope by silver impregnation.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus; D008099:Liver / Q000166:cytology; D008722:Methods; D008854:Microscopy, Electron; D059828:Plant Cells; D011402:Pronase; D051381:Rats; D012835:Silver Nitrate; D013194:Staining and Labeling; D014357:Trypsin
chemical_list: D012835:Silver Nitrate; D014357:Trypsin; D011402:Pronase