1. Department of Family Medicine, McMaster University, Hamilton, Ontario, Canada
2. Toronto Health Economics and Technology Assessment (THETA) Collaborative, Toronto, Ontario, Canada
3. Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
4. ICES, Toronto, Ontario, Canada
5. Public Health Ontario, Toronto, Ontario, Canada
6. Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada
7. Centre for Vaccine-Preventable Diseases, University of Toronto, Toronto, Ontario, Canada
8. Department of Microbiology, Sinai Health System, Toronto, Ontario, Canada
9. The Hospital for Sick Children (SickKids), Toronto, Ontario, Canada
10. University Health Network, Toronto, Ontario, Canada