1. Ministry of Education – Shanghai Key Laboratory of Children's Environmental Health Xinhua Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
2. Development and Research Training in Human Reproduction Department of Reproductive Health and Research UNDP, UNFPA, UNICEF, WHO, World Bank Special Programme of Research World Health Organization Geneva Switzerland
3. ESME – Epidemiological and Statistical Methods Research Group Helmholtz Centre for Infection Research Braunschweig Germany
4. Hannover Medical School Hannover Germany
5. Brazilian Cochrane Center São Paulo School of Medicine São Paulo Federal University São Paulo Brazil
6. Department of Obstetrics São Paulo School of Medicine São Paulo Federal University São Paulo Brazil