Fantin, Romain, Cyrille Delpierre, Michelle Kelly-Irving, and Cristina Barboza-Solís. “Complex Social Gradient in Life Expectancy in Costa Rica: An Ecological Study With 24-Million Person-Years Follow-Up”. Odovtos - International Journal of Dental Sciences 23, no. 3 (March 8, 2021): 155–167. Accessed November 24, 2024. https://revistas.ucr.ac.cr/index.php/Odontos/article/view/46128.