1. School of Medicine, Universidad de Valladolid Valladolid Spain
2. Department of Internal Medicine Hospital Universitario Río Hortega Valladolid Spain
3. Clinical Toxicology Unit Hospital Universitario Río Hortega Valladolid Spain
4. Bone Metabolism Unit Hospital Universitario Central de Asturias – ISPA Oviedo Spain
5. School of Health Sciences, Universidad Europea Madrid Spain
6. Department of Endocrinology & Clinical Nutrition Hospital Universitario Quironsalud Madrid Madrid Spain
7. Department of Rheumatology Hospital Universitario de Salamanca Salamanca Spain
8. School of Medicine, Universidad de Salamanca Salamanca Spain
9. FIRMO Foundation (Fondazione Italiana Ricerca sulle Malattie dell'Osso) Florence Italy
10. Department of Internal Medicine Hospital Quirón Barcelona Barcelona Spain
11. Endocrinology and Nutrition Unit Hospital Universitario Reina Sofía Córdoba Spain
12. Physiopathology of Endocrine Vitamin D System Biotechnology and Aging Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC) Córdoba Spain
13. Department of Internal Medicine Hospital Universitario Virgen Macarena Seville Spain
14. Infection and Immunity Area Instituto de Investigación Marqués de Valdecilla (IDIVAL) Santander Spain
15. School of Medicine, Universidad de Cantabria Santander Spain
16. Internal Medicine Department Hospital Universitario Marqués de Valdecilla Santander Spain
17. Department of Medicine University of the Basque Country Leioa Spain
18. Department of Rheumatology Hospital Quirónsalud Bizkaia Erandio Spain
19. International Master on Climacteric and Menopause, Universidad de Madrid (UDIMA) Madrid Spain
20. Gynecology and Obstetrics Service Hospital Universitario Cruces Barakaldo Spain
21. Department of Chronic Diseases and Metabolism KU Leuven Leuven Belgium
22. R&D and Innovation Department Faes Farma Leioa Spain