PT - JOURNAL ARTICLE AU - James L Stone AU - Julian E Bailes TI - In the absence of diagnosed concussion in collegiate contact sport athletes, a relationship is suggested between the effects of head impact exposure, white matter diffusivity measures and cognition AID - 10.1136/eb-2014-101750 DP - 2014 Aug 01 TA - Evidence Based Medicine PG - 157--157 VI - 19 IP - 4 4099 - http://ebm.bmj.com/content/19/4/157.short 4100 - http://ebm.bmj.com/content/19/4/157.full SO - Evid Based Med2014 Aug 01; 19