Oliveira Martins, Maria Rosário, et al. “Impact of the Demographic and Educational Structure on Health Outcomes: A Prospective Analysis for the Portuguese Population”. Hygiea Internationalis: An Interdisciplinary Journal for the History of Public Health, vol. 12, no. 1, Feb. 2016, pp. 87-102, doi:10.3384/hygiea.1403-8668.1612187.