PT - JOURNAL ARTICLE AU - Martin P Schwellnus TI - SportsMedUpdate AID - 10.1136/bjsm.2010.076174 DP - 2010 Jul 01 TA - British Journal of Sports Medicine PG - 691--692 VI - 44 IP - 9 4099 - http://bjsm.bmj.com/content/44/9/691.short 4100 - http://bjsm.bmj.com/content/44/9/691.full SO - Br J Sports Med2010 Jul 01; 44