Medina, S., Ziemann, A., Caserio-Schonemann, C., Dupuy, C., Hulth, A., Medeiros, H., … Fouillet, A. (2014). Comparing Findings from Syndromic Surveillance Systems at a European Level. Online Journal of Public Health Informatics, 6(1). https://doi.org/10.5210/ojphi.v6i1.5061