1. Academic Medical Centre Amsterdam, University of Amsterdam, Amsterdam, the Netherlands,
2. High Risk Pregnancy Labor and Delivery Unit, Enrique C. Sotomayor Obstetrics and Gynecology Hospital, Guayaquil, Ecuador,
3. Institute of Biomedicine, Research Area for Women’s Health, Facultad De Ciencias Médicas, Universidad Católica De Guayaquil, Guayaquil, Ecuador,
4. Department of Obstetrics and Gynecology, Facultad De Medicina, Lozano Blesa University Hospital, Universidad De Zaragoza, Zaragoza, Spain,
5. Department of Social Medicine, Academic Medical Centre Amsterdam, Amsterdam, the Netherlands, and
6. Neonatal Department, Enrique C. Sotomayor Obstetrics and Gynecology Hospital, Guayaquil, Ecuador