1. Department of Anesthesiology Hudiksvall Hospital Hudiksvall Sweden
2. Center for Research and Development Uppsala University/Region Gävleborg Gävle Sweden
3. Division of Cardiology Department of Medicine Karolinska Institutet Stockholm Sweden
4. Division of Endocrinology and Diabetology Department of Internal Medicine Gävle Hospital Gävle Sweden
5. University of Gävle Gävle Sweden