title: Correlation between regional cerebral blood flow and dementia in Parkinson's disease.
mesh_terms: D000328:Adult; D000368:Aged; D001921:Brain / Q000000981:diagnostic imaging; D002560:Cerebrovascular Circulation; D003704:Dementia / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D010300:Parkinson Disease / Q000503:physiopathology*; D011877:Radionuclide Imaging; D012039:Regional Blood Flow; D014980:Xenon Radioisotopes
chemical_list: D014980:Xenon Radioisotopes