1. IRCCS MultiMedica, Milan, Italy
2. Forschergruppe Diabetes e.V. at Munich Helmholtz Centre, Munich, Germany
3. Clinical Center of Diabetes, Nutrition and Metabolic Diseases, Faculty of Medicine, Ovidius University of Constanta, Constanta, Romania
4. Clalit Health Services and Technion Faculty of Medicine, Haifa, Israel
5. Clinic for Endocrinology, Diabetes and Metabolic Diseases, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
6. Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, Zagreb, Croatia
7. University of Zagreb School of Medicine, Zagreb, Croatia
8. University of Osijek School of Medicine, Osijek, Croatia
9. Department of Internal Medicine 3, First Faculty of Medicine, Charles University, Prague, Czech Republic
10. Department of Endocrinology, Diabetology, Nutrition, Jean Verdier Hospital, APHP, Paris 13 University, Sorbonne Paris Cité, CINFO, CRNH-IdF, Bondy, France