Carmona-Valdés, Sandra Emma. “Factors Affecting the Health Condition of the Elderly Living in Poverty in Nuevo León, Mexico”. Población y Salud en Mesoamérica 13, no. 2 (November 20, 2015). Accessed October 9, 2024. https://revistas.ucr.ac.cr/index.php/psm/article/view/21747.