1. Department of Obstetrics and Gynecology, University of Zaragoza Faculty of Medicine, Zaragoza, Spain;
2. Red de Investigacion de Ginecologia, Obstetricia y Reproduccion, Instituto Aragonés de Investigaciones Sanitarias, Zaragoza, Spain;
3. Department of Psychiatry, Hospital Miguel Servet, Zaragoza, Spain;
4. Hartford Hospital Evidence-Based Practice Center, University of Connecticut, Hartford, CT, USA;
5. Vicerrectorado de Investigación, Universidad San Ignacio de Loyola (USIL), Lima, Peru;
6. Department of Obstetrics and Gynecology, Hospital Lusíadas Porto, Porto, Portugal;
7. Lower Genital Tract Unit, Centro Hospitalar de São João, Porto, Portugal;
8. Department of Obstetrics and Gynecology, University of Torino, Torino, Italy;
9. Department of Obstetrics and Gynecology, Galilee Medical Center, Nahariya and Azrieli Faculty of Medicine, Bar Ilan University, Safed, Israel