1. Program in Global Surgery and Social Change, Harvard Medical School, Boston, Massachusetts, USA.
2. Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Canada.
3. Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, Boston, Massachusetts, USA.
4. Faculdade de Medicina FMUSP, Universidade de São Paulo, Brazil.
5. Gynecologic Division BP, A Beneficência Portuguesa de São Paulo, São Paulo, Brazil.
6. Obstetrics and Gynecology Department, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, Brazil.
7. Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, Massachusetts, USA.