1. Johns Hopkins Bloomberg School of Public Health, Department of International Health, Baltimore, USA
2. University of Minnesota School of Public Health, Division of Epidemiology and Community Health, Minneapolis, USA
3. University of California, San Francisco, Global Health Sciences, San Francisco, USA
4. World Health Organization, Reproductive Health and Research, Geneva, Switzerland
5. United Nations Population Fund, New York, USA
6. International Planned Parenthood Federation, London, UK