1. Humanitas University Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Milan, Italy
2. IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Milan, Italy
3. Unit of Andrology and Reproductive Medicine, Department of Medicine, University of Padova, 35128 Padua, Padua, Italy