affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Drug Safety Research Unit, Drug Safety Research Unit, affiliation not provided to SSRN, affiliation not provided to SSRN, Rabindranath Tagore International Institute of Cardiac Sciences, Kolkata, affiliation not provided to SSRN, affiliation not provided to SSRN, Drug Safety Research Unit, affiliation not provided to SSRN, University of Melbourne - Murdoch Children's Research Institute, affiliation not provided to SSRN, University of Auckland, Institute for Clinical Evaluative Sciences (ICES) and University Medical Center Utrecht - Department Datascience & Biostatistics

affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Government of the People's Republic of China - Ministry of Health, affiliation not provided to SSRN, affiliation not provided to SSRN, Institute for Clinical Evaluative Sciences (ICES), Queen's University - Institute for Clinical Evaluative Sciences, British Columbia Centre for Disease Control, affiliation not provided to SSRN, Ministry of Health - National Immunization Program, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, University of British Columbia (UBC) - School of Population and Public Health, University of Auckland, Queen's University - Institute for Clinical Evaluative Sciences, affiliation not provided to SSRN, The University of Hong Kong - University of Hong Kong, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Auckland, University of Auckland, University of Melbourne - Murdoch Children's Research Institute, University of Cincinnati and University of Melbourne