1. General and Oncologic Surgery, Morgagni-Pierantoni Hospital, AUSL Romagna, 47121 Forlì, Italy
2. Division of Obstetrics and Gynecology, Morgagni-Pierantoni Hospital, AUSL Romagna, 47121 Forlì, Italy
3. Department of Medical and Surgical Sciences (DIMEC) University of Bologna, 40123 Bologna, Italy