Deyo R. (2015). Fusion surgery for lumbar degenerative disc disease: still more questions than answers. The Spine Journal, 15(2):272-274.
Degenerative Disc Disease. Arthritis Foundation. http://www.arthritis.org/about-arthritis/types/degenerative-disc-disease/. Accessed June 2016.
Cervical Degenerative Disc Disease. UCLA Spine Center. http://spinecenter.ucla.edu/body.cfm?id=118. Accessed June 2016.
Degenerative Disc Disease or Disc Degeneration (Spondylosis). The Spinal Foundation. http://www.spinal-foundation.org/conditions/degenerative-disc-disease-or-disc-degeneration-spondylosis. Accessed June 2016.
Artificial Disk Replacement in the Lumbar Spine. American Academy of Orthopaedic Surgeons. http://www.spinal-foundation.org/conditions/degenerative-disc-disease-or-disc-degeneration-spondylosis. March 2010. Accessed June 2016.