Bettinger, Rouleau, GariƩpy, Bowie, Valiquette, Vanderkooi, Kellner, Coleman, McNeil, McCarthy, Serres, Agen, 2015. Successful methodology for large-scale surveillance of severe events following influenza vaccination in Canada, 2011 and 2012 20.. https://doi.org/10.2807/1560-7917.es2015.20.29.21189