Wright, M., Chesterton, P., Wijnbergen, M., O`Rourke, A., Macpherson, T. Julkaisussa International Journal of Sports Medicine (2017)
McHugh, M. P., Tyler, T. F., Mirabella, M. R., Mullaney, M. J., Nicholas, S. J. Julkaisussa The American Journal of Sports Medicine (2007)