1. Division of Data Analytics, Planning and Monitoring, United Nations Children’s Fund, New York, New York, USA
2. Department of Population and Family Health, Columbia University Mailman School of Public Health, New York, New York, USA
3. Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
4. Institute for Global Health Sciences, University of California San Francisco, San Francisco, California, USA
5. Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA