PT - JOURNAL ARTICLE AU - Martin P Schwellnus TI - SportsMedUpdate AID - 10.1136/bjsports-2011-090182 DP - 2011 Aug 01 TA - British Journal of Sports Medicine PG - 832--834 VI - 45 IP - 10 4099 - http://bjsm.bmj.com/content/45/10/832.short 4100 - http://bjsm.bmj.com/content/45/10/832.full SO - Br J Sports Med2011 Aug 01; 45