1. Division of Nephrology, Hypertension, and Endocrinology, Nihon University School of Medicine , Tokyo 173-8610 , Japan
2. Institution of Medicine, Sahlgrenska Academy, University of Gothenburg , Göteborg 41345 , Sweden
3. The Department of Endocrinology, Sahlgrenska University Hospital , Gothenburg, Göteborg 41345 , Sweden
4. Wallenberg Center for Molecular and Translational Medicine, University of Gothenburg , Göteborg 40530 , Sweden
5. Department of Medicine, Haukeland University Hospital , Bergen 5021 , Norway
6. Department of Diabetes and Endocrinology, Sapporo City General Hospital , Sapporo 060-8604 , Japan
7. Department of Diabetes and Endocrinology, Saiseikai Yokohamashi Tobu Hospital , Yokohama 230-8765 , Japan
8. Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU München , München 80336 , Germany
9. Department of Endocrinology, St Bartholomew's Hospital , London EC1A 7BE , UK
10. Department of Endocrinology, Royal Hallamshire Hospital , Sheffield S10 2JF , UK
11. Department of Oncology and Metabolism, University of Sheffield , Sheffield S10 2RX , UK
12. Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre Ljubljana , Ljubljana 1000 , Slovenia
13. Faculty of Medicine, University of Ljubljana , Ljubljana 1501 , Slovenia
14. School of Medicine, University of Zagreb , Zagreb 10000 , Croatia
15. Division of Endocrinology, University Hospital Center Zagreb , Zagreb 10000 , Croatia
16. Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine , Suita 565-0871 , Japan
17. Department of Endocrinology and Metabolism, National Hospital Organization Kyoto Medical Center , Kyoto 612-8555 , Japan
18. Department of Internal Medicine I, Division of Endocrinology and Diabetology, University Hospital Würzburg , Würzburg 97082 , Germany
19. Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin , Turin 10124 , Italy
20. Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, Universitätsspital Zürich (USZ) und Universität Zürich (UZH) , Zurich 8091 , Switzerland
21. 2nd Department of Surgery, Aretaieio Hospital, National and Kapodistrian University of Athens , Athens 11528 , Greece
22. Department of Endocrinologie and Nutrition, Cliniques Universitaires Saint Luc, Université catholique de Louvain , Bruxelles B-1200 , Belgium
23. Department of Medicine, Clinica Medica 3, University of Padova , Padova 35143 , Italy
24. Department of Health Promotion and Medicine of the Future, Kanazawa University Graduate School of Medicine , Kanazawa, Ishikawa 920-8641 , Japan
25. Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine , Taipei 100229 , Taiwan
26. The LOOP Zurich Medical Research Center , Zurich 8044 , Switzerland
27. Endocrine Center, Ijinkai Takeda General Hospital , Kyoto 601-1495 , Japan