1. Gynecology Department of Miguel, Servet University Hospital, Zaragoza, Spain
2. Service of Obstetrics and Gynecology, Hospital Sanitas La Zarzuela, Madrid, Spain
3. Women’s Health Institute of the Hospital Clínico San Carlos, IdISSC, Complutense University, Madrid, Spain
4. Service of Obstetrics and Gynecology, University Hospital Jaén, Jaén, Spain
5. Department of Obstetrics and Gynecology, University of Granada, Spain