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Mason JL, Xuan S, Dragatsis I, Efstratiadis A, Goldman JE.Mason JL, et al.J Neurosci. 2003 Aug 20;23(20):7710-8. doi: 10.1523/JNEUROSCI.23-20-07710.2003.J Neurosci. 2003.PMID: 12930811Free PMC article.