1. Department of Biomedical, Experimental and Clinical Sciences “Mario Serio” University of Florence Florence Italy
2. Andrology Department Fundació Puigvert Universitat Autònoma de Barcelona Instituto de Investigaciones Biomédicas Sant Pau (IIB‐Sant Pau) Barcelona Catalonia Spain
3. School of Physiology University of the Witwatersrand Faculty of Health Sciences Johannesburg South Africa
4. Endocrinology Unit Maggiore‐Bellaria Hospital Bologna Bologna Italy
5. Department of Urology and Gynecology Bologna University Hospital ‐ Policlinico S.Orsola Bologna Italy
6. Department of Clinical Sciences and Community Health University of Milan Milan Italy
7. Division of Endocrinology and Metabolism IRCCS Istituto Auxologico Italiano Milan Italy