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Nath SK, Carmona R, Rose BS, Simpson DR, Russell M, Lawson JD, Mundt AJ, Murphy KT.Nath SK, et al. Among authors: simpson dr.Childs Nerv Syst. 2011 Mar;27(3):399-406. doi: 10.1007/s00381-010-1288-6. Epub 2010 Oct 7.Childs Nerv Syst. 2011.PMID: 20927529Free PMC article.