The Sony Ericsson WTA Tour 10 year age eligibility and professional development review.

Otis, C. L., Crespo, M., Flygare, C. T., Johnston, P. R., Keber, A., Lloyd-Kolkin, D., Loehr, J., Martin, K., Pluim, B. M., Quinn, A., Roetert, P., Stroia, K. A., Terry, P.C., y Silva, R. T. (2006). The Sony Ericsson WTA Tour 10 year age eligibility and professional development review. Br J Sports Med, 40, 464-468.