Media Screen time, Physical Activity and Nutritional Indicators as Risk Factors for Childhood and Adolescent Overweight and Obesity in Aguas Zarcas, Costa Rica. UNED Res. J. [Internet]. 3 de septiembre de 2014 [citado 30 de julio de 2026];6(2):181-6. Disponible en: https://revistas.uned.ac.cr/index.php/cuadernos/article/view/622