Brown, J. C., Lambert, M. I., Hendricks, S., Readhead, C., Verhagen, E., Burger, N., Viljoen, W. Julkaisussa British Journal of Sports Medicine (2014)
Zouhal, H., Groussard, C., Minter, G., Vincent, S., Cretual, A., Gratas-Delamarche, A., Delamarche, P., Noakes, T. D. Julkaisussa British Journal of Sports Medicine (2011)
Strahm, E., Sottas, P. E., Schweizer, C., Saugy, M., Dvorak, J., Saudan, C. Julkaisussa British Journal of Sports Medicine (2009)