CNS injury and helmets.
R J
RJ
Hurlbert
D001265:Athletic Injuries / Q000453:epidemiology*; D002170:Canada / Q000453:epidemiology; D002490:Central Nervous System / Q000293:injuries*; D006260:Head Protective Devices; D006801:Humans; D007883:Legislation, Medical / Q000639:trends*; D012865:Skiing / Q000293:injuries*