Department of Obstetrics and Gynecology and Center for Perinatal and Reproductive Medicine University of Perugia Santa Maria della Misericordia University Hospital Perugia 06132 Italy;
Department of Obstetrics and Gynecology and Center for Perinatal and Reproductive Medicine University of Perugia Santa Maria della Misericordia University Hospital Perugia 06132 Italy;
Department of Obstetrics and Gynecology Almazov National Medical Research Center St.Petersburg 191014 Russia;
Department of Obstetrics and Gynecology and Center for Perinatal and Reproductive Medicine University of Perugia Santa Maria della Misericordia University Hospital Perugia 06132 Italy;