Nelson, A. J., Collins, C. L., Yard, E. E., Fields, S. K., & Comstock, R. D. (2007). Ankle Injuries Among United States High School Sports Athletes, 2005–2006. National Athletic Trainers Association.

Nelson, Alex J., Christy L. Collins, Ellen E. Yard, Sarah K. Fields, και R. Dawn Comstock. Ankle Injuries Among United States High School Sports Athletes, 2005–2006. National Athletic Trainers Association, 2007.

Nelson, Alex J., et al. Ankle Injuries Among United States High School Sports Athletes, 2005–2006. National Athletic Trainers Association, 2007.