1. Department of Obstetrics and Gynecology School of Medical Sciences University of Campinas (UNICAMP) Campinas Brazil
2. UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research Development and Research Training in Human Reproduction (HRP) Department of Sexual and Reproductive Health and Research WHO Geneva Switzerland
3. Department of Global Health Nursing Faculty of Medicine University of Tsukuba Ibaraki Japan
4. Department of Social Medicine (Public and Family Health) Ribeirao Preto Medical School University of Sao Paulo Sao Paulo Brazil