Guardado Moreira, M.J. 2010. Environmental Changes and Social Vulnerability in an Ageing Society: Portugal in the Transition from the 20th to the 21st Centuries. Hygiea Internationalis: An interdisciplinary journal for the History of Public Health. 9, 1 (Nov. 2010), 397–409. DOI:https://doi.org/10.3384/hygiea.1403-8668.1091397.