| http://www.w3.org/ns/prov#value | - Functional changes in demented patients have been found by methods such as positron emission tomography (PET) and single photon emission tomography (SPET) that show cerebral blood flow, glucose or oxygen uptake, or uptake of radioligands: the most frequent finding is a functional deficit in the posterior parietal and temporal lobes of the cortex (Hoffman et al <F-18>-Fluorodeoxyglucose (FDG) and
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