1. Carasa P. For a social history of the city. Urbanization, pauperism and assistance. In: Bonamusa F, Serrallonga J, editors. The Urban Society. Barcelona: Association of Contemporary History; 1994. pp. 23-55
2. Hans-Martin F, et al. Climate Change, Impacts and Vulnerability in Europe 2016. Vol. 1. Luxembourg: European Environment Agency; 2017. DOI: 10.2800/534806
3. Latest review of science reveals ocean in critical state from cumulative impacts. In: Rogers A, Laffoley D, editors. International Programme on the State of the Ocean. London; 2013. Available from: http://www.sciencedirect.com/science/journal/0025326X/74
4. Ferlay J et al. Cancer Incidence and Mortality Worldwide. Vol. 11. Lyon, France: International Center for Cancer Research; 2013. DOI: 10.1002/ijc.29210
5. Laín Entralgo P. Hippocratic Medicine. 1st ed. Madrid: University Alliance; 1982. p. 19. Available from: http://www.cervantesvirtual.com/nd/ark:/59851/bmc99027