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Fig 1. Modified section from a brain atlas20 showing the brain regions studied (right side) and the frequency (left side) in which cortical signal intensity abnormalities were detected. The gray-scale indicates the frequency in which the region shows hyperintensity, ranging from slight gray (postcentral gyrus, 28%) to dark gray (insula and superior frontal and cingulate gyri, 95%). [Reprinted with permission.]
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