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Scatterplot of lentiform nucleus volume in monozygotic (black dots) and dizygotic (open dots) twin pairs from the QTIM. Data points closer to the diagonal line represent similar lentiform nucleus volumes across a given twin pair. In general, the lentiform nucleus volumes in the monozygotic twins are closer than their dizygotic counterparts, which is a sign of genetic influence (confirmed by our heritability analysis)
