1. Marie Stopes International; Research Monitoring and Evaluation; 1 Conway Street 4 Fitzroy Square London UK W1T 6LP
2. WHO; Department of Obstetrics & Gynecology; 20 Avenue Appia Geneva Switzerland
3. London School of Hygiene & Tropical Medicine; 50 Kepple Street London UK WC1E7HT
4. Innovations for Poverty Action; Research and Knowledge Management Department; 101 Whitney Avenue New Haven, Connecticut CT USA 06510