1. Gynecology and Obstetrics Unit, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine University of Naples Federico II Naples 80131 Italy
2. Anatomic Pathology Unit, Department of Advanced Biomedical Sciences, School of Medicine University of Naples Federico II Naples 80131 Italy
3. Division of Obstetrics and Gynaecology, Vita‐Salute San Raffaele University IRCCS San Raffaele Scientific Institute Milan 20132 Italy
4. IRCCS San Raffaele Scientific Institute Milan Italy