Correlation Between the Oswestry Disability Index and the North American Spine Surgery Patient Satisfaction Index. - Yee, Timothy J.; Fearer, Kelsey J.; Oppenlander, Mark E.; Kashlan, Osama N.; Szerlip, Nicholas; Buckingham, Martin J.; Swong, Kevin; Chang, Victor; Schwalb, Jason M.; Park, Paul (World Neurosurgery, 2020)