Silver impregnation of blood vessels in vivo.
D000818:Animals; D001808:Blood Vessels / Q000033:anatomy & histology*; D001812:Blood-Brain Barrier / Q000502:physiology*; D001921:Brain / Q000033:anatomy & histology*; D066298:In Vitro Techniques; D008854:Microscopy, Electron; D051381:Rats; D012835:Silver Nitrate; D013194:Staining and Labeling
D012835:Silver Nitrate