The use of p-phenylenediamine in the block to enhance osmium staining for electron microscopy.
D000814:Aniline Compounds; D000818:Animals; D006168:Guinea Pigs; D008722:Methods; D008853:Microscopy; D008854:Microscopy, Electron; D009992:Osmium; D011817:Rabbits; D051381:Rats; D013194:Staining and Labeling
D000814:Aniline Compounds; D009992:Osmium