de Oliveira, A., F. R. Guilherme, S. R. dos Santos, M. T. M. Fávero, V. R. Guilherme, and W. Rinaldi. “Prediction of Cardiorrespiratory Fitness by Screen Time in Schoolchildrens”. Journal of Physical Education , Vol. 31, no. 1, Apr. 2020, p. e-3139, doi:10.4025/jphyseduc.v31i1.3139.