1 World Health Organization Collaborating Centre for Nursing, Midwifery and Health Development, Faculty of Health, University of Technology, Sydney (UTS), Jones Street, Sydney, NSW, Australia
2 School of Public Health and Community Medicine, University of New South Wales, High St, Sydney 2052, Australia
3 International Consortium for Emergency Contraception, 45 Broadway, New York, USA
4 RMNCH and HSS Technical Advice Partnerships Department The Global Fund to Fight AIDS, Tuberculosis and Malaria, Chemin de Blandonnet 8, Vernier, 1214, Geneva, Switzerland
5 Department of Reproductive Health and Research, World Health Organization, Avenue Appia, Geneva, Switzerland