1 Department of Obstetrics and Gynaecology, AOUI Verona, University of Verona, Verona, Italy.
2 Department of Obstetrics and Gynaecology, "Filippo Del Ponte" Hospital, University of Insubria, Piazza Biroldi 1, 21100, Varese, Italy. simone.garzon@yahoo.it.
3 Department of Obstetrics and Gynaecology, "Filippo Del Ponte" Hospital, University of Insubria, Piazza Biroldi 1, 21100, Varese, Italy.