A head-on collision with the National Football League.
Esther
E
Lau
D001265:Athletic Injuries / Q000150:complications*; D001924:Brain Concussion / Q000453:epidemiology* / Q000209:etiology* / Q000517:prevention & control; D005538:Football / Q000293:injuries*; D006260:Head Protective Devices; D006801:Humans; D008297:Male; D014481:United States / Q000453:epidemiology