title: Electron microscopical studies on Thorotrast permeability across the brain capillaries in rabbits. I. Observations in the normal brain.
mesh_terms: D000818:Animals; D001812:Blood-Brain Barrier; D001921:Brain / Q000098:blood supply*; D002199:Capillary Permeability; D008854:Microscopy, Electron; D011817:Rabbits; D013911:Thorium Dioxide / Q000378:metabolism*
chemical_list: D013911:Thorium Dioxide