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Stevens EA, Powers AK, Morris PP, Wilson JA.Stevens EA, et al.Spine J. 2009 Sep;9(9):e8-12. doi: 10.1016/j.spinee.2009.03.015. Epub 2009 May 13.Spine J. 2009.PMID: 19442586
Stevens EA, Strowd RE, Mott RT, Oaks TE, Wilson JA.Stevens EA, et al.Spine J. 2009 Sep;9(9):e18-22. doi: 10.1016/j.spinee.2009.04.011. Epub 2009 May 30.Spine J. 2009.PMID: 19482516
Stevens EA, Marsh R, Wilson JA, Sweasey TA, Branch CL Jr, Powers AK.Stevens EA, et al.Spine J. 2010 Oct;10(10):874-80. doi: 10.1016/j.spinee.2010.07.388.Spine J. 2010.PMID: 20869001