1. Unit of Obstetrics and Gynecology, Department of Interdisciplinary Medicine (DIM), University of Bari “Aldo Moro”, Policlinico of Bari, Piazza Giulio Cesare 11, 70124 Bari, Italy
2. Department of Emergency and Organ Transplantation (DETO), Section of Pathology, University of Bari “Aldo Moro”, Policlinico of Bari, Piazza Giulio Cesare 11, 70124 Bari, Italy
3. Department of Biomedical Sciences and Human Oncology (DIMO), Section of Dermatology and Venereology, University of Bari “Aldo Moro”, Policlinico of Bari, Piazza Giulio Cesare 11, 70124 Bari, Italy
4. Department of Medical Sciences, Obstetrics and Gynecology Unit, University Hospital “Sant’Anna”, 44121 Ferrara, Italy
5. Section II of Anesthesia and Resuscitation, Policlinico of Bari, 70121 Bari, Italy
6. Pelvic Floor Center, Department of Gynaecology and Obstetrics, Pia Fondazione “Card. G. Panico”, 73039 Tricase, Italy