∗Department of Rehabilitation Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
†Hanze University of Applied Sciences, Groningen, The Netherlands
‡Groningen Spine Center, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
§Department of Neurology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
¶Department of Neurosurgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
||Expertise Center of Health and Wellbeing, Saxion University of Applied Sciences, Enschede, The Netherlands.
Address correspondence and reprint requests to Remko Soer, PhD, Groningen Spine Center, P.O. Box 30002, 9750 RA Groningen, The Netherlands; E-mail: [email protected]
Received 15 December, 2015
Revised 2 March, 2016
Accepted 7 March, 2016
Members of the Groningen Spine Study Group are A.P. Wolff, U. Beese, J.M. Perdok, M.P. Neeleman, G.J. Groen, P.C.A.J. Vroomen, M. Uyttenboogaart, M.H. Coppes, J.M. Kuijlen, D.L.M. Oterdoom, F.H. Wapstra, C. Faber, H.R. Schiphorst Preuper, M.A.N. Siebrecht, J.B. Posthumus, J.S. Harbers, M.S.C. Haag, K.W. Wendt, P. Stegeman, M.W. Sterken, L.G.N. Speijer, J.L.C. Hamelink, R. Soer, M.F. Reneman, E.M. Abma, and J.P.L. Spoorenberg. All affiliated at the Groningen Spine Center, University Medical Center Groningen, University of Groningen, The Netherlands.
The manuscript submitted does not contain information about medical device(s)/drug(s).
No funds were received in support of this work.
Relevant financial activities outside the submitted work: employment, grants.
Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.spinejournal.com).
