A. J. Michalek, M. R. Buckley, L. J. Bonassar, I. Cohen, J. C. IatridisDec, 2010THE SPINE JOURNAL 10:1098-105 ( 2010) Journal Link: http://dx.doi.org/10.1016/j.spinee.2010.09.015Publication File: NeedlePuncture.pdf