1 Department of Obstetrics and Gynecology, MBBM Foundation at San Gerardo Hospital, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy. Electronic address: a.inzoli2@campus.unimib.it.
2 Past Director Obstetrics and Gynecology Unit, Ospedale "Sacra famiglia", Fatebenefratelli, Erba (Co), Italy.