RT Journal Article SR Electronic T1 Brain damage in American Football Inevitable consequence or avoidable risk? JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 1015 OP 1016 DO 10.1136/bjsports-2014-h1381rep VO 49 IS 15 A1 Chad A Asplund A1 Thomas M Best YR 2015 UL http://bjsm.bmj.com/content/49/15/1015.abstract AB