National Athletic Trainers' Association position statement: Preventing sudden death in sports - Casa, D. J.; Guskiewicz, K. M.; Anderson, S. A.; Courson, R. W.; Heck, J. F.; Jimenez, C. C.; McDermott, B. P.; Miller, M. G.; Stearns, R. L.; Swartz, E. E.; Walsh, K. M. (Journal of Athletic Training, 2012)