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Mutch CA, Talbott JF, Gean A.Mutch CA, et al.Neurosurg Clin N Am. 2016 Oct;27(4):409-39. doi: 10.1016/j.nec.2016.05.011. Epub 2016 Aug 10.Neurosurg Clin N Am. 2016.PMID: 27637393Free PMC article.Review.