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From the Department of Health Sciences and Health Policy, University of Lucerne, Lucerne; and Swiss Paraplegic Research, Nottwil, Switzerland. All correspondence and requests for reprints should be addressed to: Jerome Bickenbach, PhD, LLB, Swiss Paraplegic Research, Guido Zäch Institute, Guido Zäch-Strasse 4, CH-6207 Nottwil, Switzerland. The funding for this study was provided by Swiss Paraplegic Research. Financial disclosure statements have been obtained, and no conflicts of interest have been reported by the authors or by any individuals in control of the content of this article.
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Stucki et al. (2017) studied this question.
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