Silva, J. K. T. do N. F. da, Lins Filho, O. de L., Germano-Soares, A. H., Ritti-Dias, R. M., & Farah, B. Q. (2022). Association between frequency of physical education classes and heart rate variability in adolescents boys: a cross-sectional study. Journal of Physical Education , 33(1), e-3322. https://doi.org/10.4025/jphyseduc.v33i1.3322