Published on in Vol 8 , No 1 (2019) :January

1 Kaiser Permanente Northwest , Center for Health Research , Portland , OR , US
2 Abt Associates, Inc , Cambridge , MA , US
3 ICES , Toronto , ON , CA
4 Chief Physician's Office , Clalit Health Services , Clalit Research Institute , Tel Aviv , IL
5 School of Public Health , Curtin University , Perth, Western Australia , AU
6 Cumming School of Medicine , University of Calgary , Calgary , AB , CA
7 Kaiser Permanente Vaccine Study Center , Oakland , CA , US
8 Alberta Health , Edmonton , AB , CA
9 Influenza Division , Centers for Disease Control and Prevention , Atlanta , GA , US
10 PathWest Laboratory Medicine Western Australia , Perth , AU
11 School of Epidemiology and Public Health , University of Ottawa , Ottawa , ON , CA
12 Department of Laboratory Medicine and Pathology , University of Alberta , Edmonton , AB , CA
13 Western Australia Department of Health , Perth , AU
14 Kaiser Permanente Washington Health Research Institute , Seattle , WA , US
*these authors contributed equally