Harden R Norman, Argoff Charles E, Williams David A
Center for Pain Studies, Rehabilitation Institute of Chicago, Chicago, Illinois, USA; Department of Physical Medicine and Rehabilitation, Northwestern University, Evanston, Illinois, USA; Department of Physical Therapy and Movement Sciences, Northwestern University, Evanston, Illinois, USA.
Pain Med. 2014 Nov;15(11):1823-4. doi: 10.1111/pme.12576. Epub 2014 Oct 3.