Breadcrumb Home Insights Publications article The Sony Ericsson WTA Tour 10 year age eligibility and professional development review C L Otis, M Crespo, C T Flygare, P R Johnston, A Keber, D Lloyd-Kolkin, J Loehr, K Martin, B M Pluim, A Quinn, P Roetert, K A Stroia and P C Terry Article British Journal of Sports Medicine — 40:464-468