C. J Griffith, R. F LaPrade, S Johansen, B Armitage, C Wijdicks and L. Engebretsen
The American Journal of Sports Medicine 37 ( 9 ): 1762 - 1770 , 2009
C. A Wijdicks, C. J Griffith, R. F LaPrade, S. I Spiridonov, S Johansen, B. M Armitage and L. Engebretsen
The American Journal of Sports Medicine 37 ( 9 ): 1771 - 1776 , 2009