Molina NA, Guzmán Sierra D, Ureña Retana I, Fernández Rojas X. Evaluation of an educational intervention to improve teachers’ fruit and vegetable intake and physical activity practice in three public schools in Costa Rica. PSM [Internet]. 2020Jun.18 [cited 2024Nov.27];18(1). Available from: https://revistas.ucr.ac.cr/index.php/psm/article/view/40821