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Showing articles 0 to 2 of 2 Filter Applied: spondylolisthesis (Click to remove) Back Surgery -- Who Needs It? NEJM 356:2239-2245, Deyo,R.A., 2007 Low Back Pain NEJM 344:363-370, Deyo,R.A. &Weinstein,J.N., 2001 Showing articles 0 to 2 of 2