B. E Oiestad, L Engebretsen, K Storheim and M. A. Risberg
The American Journal of Sports Medicine 37 ( 7 ): 1434 - 1443 , 2009
I Holm, B. E Oiestad, M. A Risberg and A. K. Aune
The American Journal of Sports Medicine 38 ( 3 ): 448 - 454 , 2010
B. E Oiestad, I Holm, A. K Aune, R Gunderson, G Myklebust, L Engebretsen, M. A Fosdahl and M. A. Risberg
The American Journal of Sports Medicine 38 ( 11 ): 2201 - 2210 , 2010