1. Harvard Medical School, 25 Shattuck St., 02115 Boston, MA, USA
2. Geneva Foundation for Medical Education and Research, 150 Route de Ferney, 1211 Geneva, Switzerland
3. Department of Family Medicine, University of Washington, Box 356390, 98195 Seattle, WA, USA
4. Compañeros En Salud, Calle Primera Poniente Sur #25, 30370 Ángel Albino Corzo, Chiapas, Mexico
5. Programa Multicéntrico de Residencias Médicas, Tec Salud, Tecnológico de Monterrey, Av Morones Prieto No. 3000, Colonia Los Doctores, CP 64710 Monterrey, Nuevo León, Mexico
6. La Clínica de la Raza, P.O. Box 22210, 94623 Oakland, CA, USA
7. Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Kirstein 3, 02215 Boston, MA, USA
8. Division of Women’s Health, Brigham and Women’s Hospital, 75 Francis St., 02215 Boston, MA, USA