PT - JOURNAL ARTICLE AU - Martin P Schwellnus TI - SportsMedUpdate AID - 10.1136/bjsm.2010.072165 DP - 2010 Mar 01 TA - British Journal of Sports Medicine PG - 294--296 VI - 44 IP - 4 4099 - http://bjsm.bmj.com/content/44/4/294.short 4100 - http://bjsm.bmj.com/content/44/4/294.full SO - Br J Sports Med2010 Mar 01; 44