Alexander Saldaña-Koppel, R. R.-Z. , D. “Clinical Study: Use of a Modified Spatula in the Anterior Cervical Discectomy and Fusion to Prevent Damage to Midline Structures”. International Journal of Medical Science and Clinical Invention, vol. 4, no. 3, Mar. 2017, doi:10.18535/ijmsci/v4i3.06.