DS_10.1177_0363546519860120 – Supplemental material for Effect of a New Rule Limiting Full Contact Practice on the Incidence of Sport-Related Concussion in High School Football Players

Supplemental material, DS_10.1177_0363546519860120 for Effect of a New Rule Limiting Full Contact Practice on the Incidence of Sport-Related Concussion in High School Football Players by Adam Y. Pfaller, M. Alison Brooks, Scott Hetzel and Timothy A. McGuine in The American Journal of Sports Medicine