title: Observations on nucleolar staining with osmium tetroxide.
mesh_terms: D002466:Cell Nucleolus; D002843:Chromatin; D003593:Cytoplasm; D009992:Osmium; D010087:Oxides; D059828:Plant Cells; D013194:Staining and Labeling
chemical_list: D002843:Chromatin; D010087:Oxides; D009992:Osmium