Donelson, W., J. Dean, E. Ablah, C. Whitaker, G. Berg, K. McCormick, H. Okut, and C. Whitaker. “Patient Controlled Analgesia and an Alternative Protocol: A Comparison of Outcomes After Thoracic and Lumbar Surgery”. Kansas Journal of Medicine, vol. 15, no. 2, July 2022, pp. 237-40, doi:10.17161/kjm.vol15.15972.