National football league experiences with return to play after concussion.
Casson
Ira R
IR
Pellman
Elliot J
EJ
Viano
David C
DC
D001924:Brain Concussion / Q000503:physiopathology*; D005538:Football / Q000293:injuries*; D006801:Humans; D008297:Male; D038223:Post-Concussion Syndrome / Q000209:etiology; D020127:Recovery of Function