title: The ultrastructure of the capsules of Diplococcus pneumoniae and Klebsiella pneumoniae stained with ruthenium red.
mesh_terms: D002462:Cell Membrane; D002473:Cell Wall; D006863:Hydrogen-Ion Concentration; D007709:Klebsiella / Q000166:cytology*; D007711:Klebsiella pneumoniae / Q000166:cytology; D008854:Microscopy, Electron; D012428:Ruthenium; D013194:Staining and Labeling; D013296:Streptococcus pneumoniae / Q000166:cytology*
chemical_list: D012428:Ruthenium