1. Research Center for Reproductive Medicine, Gynecological Endocrinology and Menopause, IRCCS S. Matteo Foundation, Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy,
2. Obstetrics and Gynecology, University of Turin, School of Medicine Ospedale Mauriziano Umberto I, Turin, Italy,
3. Gynecology and Obstetrics, University of Modena and Reggio Emilia, Azienda Policlinico of Modena, Modena, Italy,
4. Gynecology and Obstetrics, Department of Neurosciences and Reproductive Sciences, University of Naples Federico II, Naples, Italy,
5. Obstetrics and Gynecology, Department of Molecular and Developmental Medicine, University of Siena, Policlinico “Le Scotte”, Siena, Italy, and
6. Obstetrics and Gynecology, Department of Surgical Sciences, University of Cagliari, AOU Cagliari, Italy