1. Endocrinology Unit; Medical Department; Maggiore-Bellaria Hospital; Azienda-Usl Bologna; Bologna Italy
2. Sexual Medicine and Andrology Unit; Department of Experimental, Clinical and Biomedical Sciences; University of Florence; Florence Italy
3. Health and Rehabilitation Research Institute; Auckland University of Technology; Auckland New Zealand
4. Waitemata Pain Service; Department of Anaesthesia and Perioperative Medicine; North Shore Hospital; Auckland New Zealand
5. ‘I Mulini’ Medical Center; Cagliari Italy
6. Department of Experimental Medicine; Sapienza University of Rome; Rome Italy
7. Diabetology; Careggi Teaching Hospital; Florence Italy
8. Endocrinology, Andrology and Medical Sexology; Department of Systems Medicine; Tor Vergata University of Rome; Rome Italy