title: Images of brain function.
mesh_terms: D001810:Blood Volume; D001921:Brain / Q000098:blood supply*; D002560:Cerebrovascular Circulation; D006801:Humans; D010992:Plethysmography, Impedance / Q000379:methods; D011865:Radioisotope Dilution Technique; D013667:Technetium; D014055:Tomography, Emission-Computed / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D013667:Technetium