1. Dept. of Population and Family Health, Mailman School of Public Health, Columbia University, USA meb2308@cumc.columbia.edu
2. Dept. of Population and Family Health, Mailman School of Public Health, Columbia University, USA md3848@cumc.columbia.edu
3. Population Council USA jpinchoff@popcouncil.org
4. Population Council Kenya bkangwana@popcouncil.org
5. Population Council Kenya kaustrian@popcouncil.org