- Correspondence to Dr Kristian Thorborg, Department of Orthopaedic Surgery, Sports Orthopedic Research Center—Copenhagen (SORC-C), Amager-Hvidovre Hospital, Faculty of Health Sciences, Copenhagen University, Kettegårds Allé 30, Hvidovre 2650, Denmark;
- Accepted 23 December 2016
- Published in print 1 April 2017.
- Published online 14 March 2017.
- Published first 13 January 2017.
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