the findings are consistent with the hypothesis that `` '' silent damage '' '' to the dopaminergic nigral neurons may precede the onset of parkinsonism by many years and that pet scanner examination using 6- [ 18f ] -l-fluorodopa may be useful in the detection of subtle dopaminergic dysfunctions as may exist in da-related motor syndromes and neuropsychiatric disorders .
C0039082
r syndrom
C0012634
disorde