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Intervididual maps: QSM images of paramagnetic sources (iron, etc.) obtained from 21 subjects ordered with increasing age. The grayscale color code indicates brighter values in the highly myelinated structures. Note the highest values in the pallidum, caudate, at the specific sites in putamen and thalamus. Darker values indicate lower values. Three subjects (BNST10, BNST13, BNST18) show only partial coverage.
