1. Department of Diabetes Complications Research, Steno Diabetes Center; Gentofte Denmark
2. Department of Clinical Physiology & Nuclear Medicine & PET, Rigshospitalet, Glostrup Hospital; Glostrup Denmark
3. Department of Endocrinology, Herlev University Hospital; Herlev Denmark
4. Department of Clinical Medicine, University of Copenhagen; Copenhagen Denmark
5. Health, Aarhus University; Aarhus Denmark