1. Research Unit for General Practice and Section for General Medical Practice, Department of Public Health, Aarhus University, Aarhus, Denmark
2. Danish Diabetes Academy, Odense, Denmark
3. Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
4. Department of Medicine I and Clinical Chemistry, Heidelberg University Hospital, Heidelberg, Germany
5. German Center for Diabetes Research, Neuherberg, Germany
6. Institute for Diabetes and Cancer, Helmholtz Center Munich, Munich, Germany
7. Joint Heidelberg–Institute for Diabetes and Cancer Translational Diabetes Program, Neuherberg, Germany
8. Steno Diabetes Center Copenhagen, Gentofte, Denmark
9. Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
10. Department of Neurology, University of Michigan, Ann Arbor, MI