(Q51997458)
Statements
1 reference
Concussion in professional football: repeat injuries--part 4. (English)
1 reference
Elliot J Pellman
1 reference
David C Viano
1 reference
Ira R Casson
1 reference
Andrew M Tucker
1 reference
Joseph F Waeckerle
1 reference
John W Powell
1 reference
Henry Feuer
1 reference
1 October 2004
1 reference
1 reference
55
1 reference
4
1 reference
860-73; discussion 873-6
1 reference
Identifiers
1 reference