El Bizri, Issam, Andrew D Massey, and Teresa Reynolds. “Ossification of the Posterior Longitudinal Ligament Misdiagnosed As Multiple Sclerosis”. Kansas Journal of Medicine 2, no. 2 (February 25, 2009): 48–51. Accessed April 17, 2025. https://journals.ku.edu/kjm/article/view/11292.