1. Nurturing Care Research and Guidance Center, Capital Institute of Pediatrics, Beijing, China
2. China Center for Health Development Studies, Peking University, Beijing, China
3. Department of Health Policy and Management, School of Public Health, Peking University, Beijing, China
4. Department of Integrated Early Childhood Development, Capital Institute of Pediatrics, Beijing, China
5. Child Development Research Centre, China Development Research Foundation
6. Child Health and Development, UNICEF China, Beijing, China
7. Center for Global Health (CGH), University of Colorado Anschutz Medical Campus Aurora, Colorado, USA
8. WHO Collaborating Center to Promote Family and Child Health, University of Colorado Anschutz Medical Campus Aurora, Colorado, USA
9. Colorado School of Public Health, University of Colorado Anschutz Medical Campus Aurora, Colorado, USA
10. Peking University Health Science Center – Chinese Center for Disease Control and Prevention Joint Research Center for Vaccine Economics, Beijing, China
11. Institute for Global Health and Development, Peking University, Beijing, China