%0 Journal Article %A Savage, R D %A Winter, A L %A Rosella, L C %A Olsha, R %A Gubbay, J B %A Skowronski, D M %A Crowcroft, N S %T Strengths and limitations of assessing influenza vaccine effectiveness using routinely collected, passive surveillance data in Ontario, Canada, 2007 to 2012: balancing efficiency versus quality %D 2015 %J Eurosurveillance %V 20 %N 16 %P 21100 %R doi:https://doi.org/10.2807/1560-7917.ES2015.20.16.21100 %K vaccines and immunisation %K surveillance %K influenza %K sentinel surveillance %K vaccine preventable diseases %U https://www.eurosurveillance.org/content/10.2807/1560-7917.ES2015.20.16.21100