1. Unit of Andrology and Reproductive Medicine, Department of Medicine, University of Padova, 35122 Padova, Italy
2. Urology Clinic, Department of Surgery, Oncology and Gastroenterology, University of Padova, 35122 Padova, Italy
3. Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
4. Chair of Endocrinology and Medical Sexology (ENDOSEX), University of Tor Vergata, 00133 Rome, Italy