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OBJECTIVE We have encountered occasional equivocal findings when assessing cerebral cortical amyloid retention with (11)C-Pittsburgh compound B (PiB) PET. We investigated the diagnostic significance of equivocal PiB PET findings. METHODS This retrospective study included 101 consecutive patients complaining of cognitive disorders (30 Alzheimer's disease,(More)
We studied 50 patients with Parkinson's disease to determine any relation of epidemiologic factors (such as the duration of illness), the duration of levodopa therapy, the total amount of administered levodopa to degree of autonomic dysfunction. Autonomic dysfunction was evaluated using the composite autonomic scoring scale (CASS). The CASS scores were(More)
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