- Correspondence to Professor Martin P Schwellnus, Clinical Sport and Exercise Medicine Research Group, UCT/MRC Research Unit for Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, 3rd Floor, Sports Science Institute of South Africa, Boundary Road, Newlands, Cape Town 7700, South Africa;
- Accepted June 13, 2014
- First published June 30, 2014.
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