1. Center for Reproductive Medicine and Andrology/Clinical and Surgical Andrology University Hospital of Münster Münster Germany
2. Rigshospitalet, Department of Growth and Reproduction University of Copenhagen Copenhagen Denmark
3. Medical Department Endocrinology Unit Maggiore Bellaria Hospital Azienda Usl Bologna Italy
4. Department of Experimental Medicine Advanced Endocrine Diagnostics Unit Policlinico Umberto I HospitalSapienza University of Rome Rome Italy
5. Department of Endocrinology and Center for Sexology and Gender Ghent University and Ghent University Hospital Ghent Belgium
6. Department of Urology Radboud University Medical Centre Nijmegen Nijmegen The Netherlands
7. Department of Pediatrics Institute of Biomedicine Research Centre for Integrated Physiology and Pharmacology and Centre for Population Health Research University HospitalUniversity of Turku Turku Finland
8. Department of Andrology and Reproductive Endocrinology Medical University of Lodz Lodz Poland
9. Institute of Human Genetics University of Münster Münster Germany
10. Department of Clinical and Experimental Sciences Unit of Endocrinology and Metabolism University of Brescia and ASST Spedali Civili Brescia Brescia Italy