The impact of preoperative neurological symptom severity on postoperative outcomes in cervical spondylotic myelopathy oleh Gregory R Toci, Jose A Canseco, Brian A Karamian, Michael Chang, Giovanni Grasso, Kristen Nicholson, Emily M Pflug, Glenn S Russo, Daniel Tarazona, I David Kaye, Mark F Kurd, Alan S Hilibrand, Barrett I Woods, Jeffrey A Rihn, D Greg Anderson, Kris E Radcliff, Christopher K Kepler, Alexander R Vaccaro, Gregory D Schroeder