- Buccal have purplish blue stain.
- Mast cells were detected with toluidine blue stain.
- These opacities are prooved to be iron-containing substances by Prussian blue stain.
- The motor neurons of facial nuclei were observed by HE and toluidine blue stain over 6 weeks.
- The production of matrix was estimated based on hydroxyproline quantity and Alcian Blue stain method.
- At 6 hours after injury, water and Evans blue contents of each hemisphere were assayed and the area of Evans blue stain was measured.