1. Unit of Gynecology and Obstetrics, Department of Human Pathology in Adulthood and Childhood “G. Barresi”, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
2. Department of Obstetrics and Gynecology, Campus Bio-Medico University of Rome, Via Álvaro del Portillo 21, 00128 Rome, Italy
3. Department of Medicine, Surgery and Health Sciences, University of Trieste, Ospedale di Cattinara, Strada di Fiume 447, 34149 Trieste, Italy
4. Unit of Psychodiagnostics and Clinical Psychology, University of Catania, Via Santa Sofia 78, 95124 Catania, Italy
5. Department of Woman and Child Health, University of Padua, Via Giustiniani 3, 35128 Padua, Italy
6. Department of General Surgery and Medical Surgical Specialties, University of Catania, Via Santa Sofia 78, 95124 Catania, Italy
7. Unit of Gynecology and Obstetrics, Desenzano del Garda Hospital, Section of Gavardo, Via A. Gosa 74, 25085 Gavardo, Italy
8. Department of Obstetrics and Gynecology, Institute for Maternal and Child Health-IRCCS “Burlo Garofolo”, Via dell’Istria 65/1, 34137 Trieste, Italy