1. UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research; Development and Research Training in Human Reproduction (HRP); Department of Reproductive Health and Research; World Health Organization; Geneva Switzerland
2. Department of Social Medicine; Ribeirao Preto Medical School; University of Sao Paulo; Ribeirao Preto Sao Paulo Brazil
3. Glide Technical Cooperation and Research; Ribeirao Preto Sao Paulo Brazil
4. Johns Hopkins Bloomberg School of Public Health; Baltimore ML USA