Muscatello, D. J., Amin, J., MacIntyre, C. R., Newall, A. T., Rawlinson, W. D., Sintchenko, V., … Thackway, S. (2014). Under-ascertainment of Illness due to Influenza in Administrative Databases, a Population-based Record Linkage Study. Online Journal of Public Health Informatics, 6(1). https://doi.org/10.5210/ojphi.v6i1.5189