1. Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
2. Institute for Vaccine Safety, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
3. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
4. Department of Health Behavior and Society, Johns Hopkins Bloomberg School of Public, Baltimore, MD, USA
5. International Vaccine Access Center, International Vaccine Access Center, Baltimore, MD, USA
6. Department of Medicine, Johns Hopkins School of Medicine
7. Department of Health Policy, Johns Hopkins Bloomberg School of Public, Baltimore, MD, USA
8. Berman Institute of Bioethics, Deering Hall, Baltimore, MD, USA
9. Adult and Child Consortium for Health Outcomes Research and Delivery Science, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
10. Children’s Hospital Colorado, Aurora, CO, USA