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Sigalovsky IS, Fischl B, Melcher JR.Sigalovsky IS, et al.Neuroimage. 2006 Oct 1;32(4):1524-37. doi: 10.1016/j.neuroimage.2006.05.023. Epub 2006 Jun 27.Neuroimage. 2006.PMID: 16806989Free PMC article.