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Objectives To compare the incidence rates and odds of concussion between youth ice hockey players based on mouthguard use and helmet age. Materials and methods ... Centres for Prevention of Injury and ...
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Surfing And Concussions: Where’s Your Head At?mandated that players wear helmets. And in 2011, the NFL instated its five-step concussion protocol. The National Hockey League (NHL) followed suit in 1983, mandating helmets, and created a ...
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