Neuroimaging of monozygotic twins with Tourette syndrome suggests that increased binding by dopamine D2 receptors contributes to the disease phenotype.
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Robertson, M. D2 be or not to be?. Nat Med 2, 1076–1077 (1996). https://doi.org/10.1038/nm1096-1076
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DOI: https://doi.org/10.1038/nm1096-1076