1. Steno Diabetes Center Copenhagen, Copenhagen University Hospital , Herlev 2730 , Denmark
2. Copenhagen University Hospital-Bispebjerg Department of Dermatology, Venereology, and Wound Healing Centre, , Copenhagen 2400, Denmark
3. Aarhus University Department of Public Health, Environment, Occupation, and Health, , Aarhus 8000 , Denmark
4. Copenhagen University Hospital-Bispebjerg Department of Dermatology, Venereology, and Wound Healing Centre, , Copenhagen 2400 , Denmark
5. University of Copenhagen Department of Biomedical Sciences, , Copenhagen 2200 , Denmark
6. Copenhagen University Hospital-Hvidovre Department of Internal Medicine, Section of Endocrinology, , Hvidovre 2650 , Denmark
7. Copenhagen University Hospital-Hvidovre Department of Internal Medicine, Respiratory Medicine Section, , Hvidovre 2650 , Denmark
8. Zealand University Hospital Roskilde-Næstved Department of Respiratory Medicine, , Næstved 4700 , Denmark