1 Department of Obstetrics and Gynecology, "G. Fornaroli" Hospital, Milan, Italy. Electronic address: giussy.barbara@gmail.com.
2 Department of Obstetrics and Gynecology, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico and Università degli Studi di, Milano, Milan, Italy.
3 Department of Psychology, Catholic University of Milan, Milan, Italy.