Norvell Daniel C, Dettori Joseph R, Chapman Jens R
Spectrum Research, Inc., Tacoma, Washington, United States.
Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, United States.
Global Spine J. 2016 Aug;6(5):519-21. doi: 10.1055/s-0036-1584928. Epub 2016 Jun 29.