Kucera, K. L., Marshall, S. W., Campbell, D. R., DiStefano, M. J., Goerger, C. P., & Oyama, S. (2011). Validity of soccer injury data from the National Collegiate Athletic Association's injury surveillance system. Journal of athletic training, 46(5), S. 489-499. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3418955/pdf/i1062-6050-46-5-489.pdf

Kucera, Kristen L., Stephen W. Marshall, David R. Campbell, Michael J. DiStefano, Candice P. Goerger, and Sakiko Oyama. "Validity of Soccer Injury Data From the National Collegiate Athletic Association's Injury Surveillance System." Journal of Athletic Training 46, no. 5 (2011): S. 489-499.

Kucera, Kristen L., et al. "Validity of Soccer Injury Data From the National Collegiate Athletic Association's Injury Surveillance System." Journal of Athletic Training 46.5 (2011): S. 489-499.