Concussions are brain injuries and should be taken seriously.
Tator
Charles
C
D001265:Athletic Injuries / Q000453:epidemiology*; D001294:Attitude to Health; D001924:Brain Concussion / Q000453:epidemiology*; D002170:Canada / Q000453:epidemiology; D006688:Hockey / Q000293:injuries*; D006801:Humans