1. Department of Obstetrics and Gynecology, University Hospital of Jerez de la Frontera, 11407 Cádiz, Spain
2. Department of Obstetrics and Gynecology, Viamed Bahía de Cádiz Hospital, 11130 Cádiz, Spain
3. Department of Obstetrics and Gynecology, Faculty of Medicine, University of Cádiz, 11003 Cádiz, Spain
4. Department of Obstetrics and Gynecology, Regional University Hospital of Granada and Inagor Women’s Clinic, 18001 Granada, Spain
5. Department of Obstetrics and Gynecology, Regional University Hospital of Málaga, 29001 Málaga, Spain
6. Department of Obstetrics and Gynecology, Alboran CMM Women’s Clinic, 04001 Almería, Spain