Cortela, C., Klering, R., Gonçalves, G., Souza, S. and Balbinotti, C. 2016. Early specialization in sports: A factor to be considered in brazilian tennis players?. ITF Coaching & Sport Science Review . 24, 70 (Dec. 2016), 19–21. DOI:https://doi.org/10.52383/itfcoaching.v24i70.214.