Frommer, L. J., Gurka, K. K., Cross, K. M., Ingersoll, C. D., Comstock, R. D., & Saliba, S. A. (2011). Sex differences in concussion symptoms of high school athletes. Journal of athletic training, 46(1), S. 76-84. doi:10.4085/1062-6050-46.1.76

Frommer, Leah J., Kelly K. Gurka, Kevin M. Cross, Christopher D. Ingersoll, R. Dawn Comstock, and Susan A. Saliba. "Sex Differences in Concussion Symptoms of High School Athletes." Journal of Athletic Training 46, no. 1 (2011): S. 76-84.

Frommer, Leah J., et al. "Sex Differences in Concussion Symptoms of High School Athletes." Journal of Athletic Training 46.1 (2011): S. 76-84.