- Correspondence to Sophie E Steenstrup, Department of Sports Medicine, Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, PB 4014 Ullevål Stadion, Oslo 0806, Norway;
- Accepted November 6, 2013
- First published December 10, 2013.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.