1. Department of Medical Sciences, Obstetrics and Gynecology Unit, University Hospital “Sant’Anna”, 44121 Ferrara, Italy
2. Department of Development and Regeneration—Woman and Child, KU Leuven, 3000 Leuven, Belgium
3. Department of Medical Sciences, Institute of Obstetrics and Gynecology, University of Ferrara, Via Fossato di Mortara, 64/B, 44121 Ferrara, Italy