Arufe-Giráldez, V., A. Sanmiguel-Rodríguez, M. L. Zagalaz-Sánchez, J. Cachón-Zagalaz, and G. González-Valero. “Sleep, Physical Activity and Screens in 0-4 Years Spanish Children During the COVID-19 Pandemic: Were the WHO Recommendations Met?”. Journal of Human Sport and Exercise, vol. 17, no. 3, July 2022, pp. 484-03, doi:10.14198/jhse.2022.173.02.