1. Division of Gynaecology and Human Reproduction Physiopathology IRCCS Azienda Ospedaliero‐Universitaria di Bologna Bologna Italy
2. Department of Medical and Surgical Sciences University of Bologna Bologna Italy
3. Department of Gynecology Madre Fortunata Toniolo Clinic Bologna Italy
4. Department of Obstetrics and Gynecology Tuscany Health Agency Florence Italy
5. Section of Hygiene, Public Health and Medical Statistics, Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum University of Bologna Bologna Italy
6. Anatomic Pathology Unit, Department of Advanced Biomedical Sciences, School of Medicine University of Naples Federico II Naples Italy
7. Gynecology and Obstetrics Unit, Department of Medicine, Surgery and Dentistry "Schola Medica Salernitana" University of Salerno Baronissi Italy
8. Obstetrics, Gynecology and Reproductive Science Department University of Miami, Miller School of Medicine Miami Florida USA