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Dimar JR 2nd, Glassman SD, Burkus JK, Pryor PW, Hardacker JW, Carreon LY.Dimar JR 2nd, et al. Among authors: burkus jk.Spine J. 2009 Nov;9(11):880-5. doi: 10.1016/j.spinee.2009.03.013. Epub 2009 May 17.Spine J. 2009.PMID: 19447682