1. Obstetrics and Gynecology, Department of Molecular and Developmental Medicine, University of Siena, ‘S. Maria alle Scotte’ University Hospital, viale Bracci, Siena, Italy
2. Department of Health Sciences, University of Florence, Careggi University Hospital, Largo Brambilla, Florence, Italy
3. Department of Obstetrics and Gynecology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
4. Department of Biomedical, Experimental and Clinical Sciences ‘Mario Serio’, University of Florence, Careggi University Hospital, Largo Brambilla, Florence, Italy