1. Johns Hopkins University, Baltimore, MD, USA
2. University of Sao Paulo School of Nursing, São Paulo/SP, Brazil
3. University of Sao Paulo School of Public Health, São Paulo/SP, Brazil
4. Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo
5. NHC Key Lab of Reproductive Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Shanghai, China
6. Universitas Gadjah Mada, Yogyakarta, Indonesia
7. Kamuzu University of Health Sciences, Blantyre, Malawi