Polio Crisis in Costa Rica: Lessons Learned and Achievements. Revista Electrónica Educare, [S. l.], v. 19, n. 2, p. 93–103, 2015. DOI: 10.15359/ree.19-2.6. Disponível em: https://www.revistas.una.ac.cr/index.php/EDUCARE/article/view/6581.. Acesso em: 28 apr. 2024.