1. aIndependent consultant, 2 rue Jacques Grosselin, 1227 Carouge, Switzerland.
2. bDepartment of Reproductive Health and Research, World Health Organization, Geneva, Switzerland.
3. cInstitute of Social and Preventive Medicine, University of Bern, Bern, Switzerland.
4. dViet Nam country office, World Health Organization, Ha Noi, Viet Nam.
5. eDepartment of Child and Adolescent Health and Development, World Health Organization, Geneva, Switzerland.
6. fProgram on International Health and Human Rights, Harvard School of Public Health, Boston, United States of America.