León-Avila, F. et al. 2021. Can exercise be used as a protective agent against disease severity in COVID-19 and as treatment during subsequent rehabilitation?. Proceedings of Scientific Research Universidad Anáhuac. Multidisciplinary Journal of Healthcare. 1, 1 (Jul. 2021), 45–51. DOI:https://doi.org/10.36105/psrua.2021v1n1.06.