Autumn fog.
Bruce
B
Reider
D056352:Athletes / Q000706:statistics & numerical data; D001265:Athletic Injuries / Q000150:complications* / Q000517:prevention & control; D001924:Brain Concussion / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology*; D020208:Brain Injury, Chronic / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D015995:Prevalence