title: [H] Tryptamine and 3H-water as diffusible internal standards for measuring brain extraction of radio-labeled substances following carotid injection.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism*; D002339:Carotid Arteries; D007269:Injections, Intra-Arterial; D051381:Rats; D014363:Tryptamines / Q000378:metabolism*; D014867:Water / Q000378:metabolism*
chemical_list: D014363:Tryptamines; D014867:Water