%0 Journal Article %T Demonstration of background rates of three conditions of interest for vaccine safety surveillance %A Wormsbecker, Anne E. %A Johnson, Caitlin %A Bourns, Laura %A Harris, Tara %A Crowcroft, Natasha S. %A Deeks, Shelley L. %J PLoS ONE %V 14 %N 1 %D 2019-01-15 %I Public Library of Science %~ DeepDyve