1. Clinical Sciences Department, Obstetrics and Gynecology Section, Università Politecnica delle Marche, Via Filippo Corridoni 11, 60123 Ancona, Italy
2. Obstetrics and Gynecology Unit, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genova, Italy
3. Clinical Sciences Department, Pediatric Surgery Section, Università Politecnica delle Marche, Via Filippo Corridoni 11, 60123 Ancona, Italy