1. Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, Bixby Center for Global Reproductive Health, 3333 California Street, San Francisco, CA, USA
2. Abt Associates, Central Park West Suite 210, 5001 South Miami Boulevard, Durham, NC, USA
3. Abt Associates, 6130 Executive Blvd, Rockville, MD, USA
4. Institut National de Santé Publique et Communautaire, Ex Ecole de médecine de Befelatanana, BP 176, Antananarivo, Madagascar
5. TANDEM Lot H 107, Merimanjaka, 102 Antananarivo, Madagascar