1. Principal Research Scientist, Guttmacher Institute, New York, NY, USA
2. Director, International Research, Guttmacher Institute, New York, NY, USA.
3. Distinguished Scholar and Vice President, Global Science and Policy Integration, Guttmacher Institute, New York, NY, USA
4. Research Scientist, Sexual Reproductive Maternal Newborn Child and Adolescent Health, African Population and Health Research Center, Nairobi, Kenya
5. Lead Informationist, Welch Medical Library, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
6. Deputy Editor-in-Chief, Global Health: Science and Practice Journal, Washington, DC, USA