Faúndez-Casanova C, Almuna Alfaro C, Donoso Vilaza C, Retamales Oyarce L, Saravia Albornoz T, Sazo Amigo L, et al. Nivel de actividad física, tiempo de pantalla y hábitos de sueño en adolescentes chilenos durante cuarentena por COVID-19 (Physical activity level, screen time and sleep habits in Chilean adolescents, during quarantine by COVID-19). Retos [Internet]. 2023 Jun. 28 [cited 2026 Jun. 10];49:231-6. Available from: https://www.revistaretos.org/index.php/retos/article/view/94971