Affiliation: | a Unit of General Surgery, Ospedali Riuniti di Bergamo, Largo Barozzi 1-24128, Bergamo, Italyb Unit of Gynecology and Obstetrics, Ospedali Riuniti di Bergamo, Largo Barozzi 1-24128, Bergamo, Italyc Unit of Gynecology and Obstetrics, St.Orsola-Malpighi University Hospital, Via Massarenti 9-40138 Bologna, Italy |