1. Department of Cardiology, Vestfold Hospital Trust, Tønsberg, Norway
2. Department of Medicine, Vestre Viken Trust, Drammen Hospital, Drammen, Norway
3. Department of Behavioural Medicine, the Faculty of Medicine, University of Oslo, Oslo, Norway
4. Department of Acute Medicine, Vestfold Hospital Trust, Tønsberg, Norway
5. Department of Cardiology, Oslo University Hospital, Oslo, Norway
6. Institute of Clinical Medicine, the Faculty of Medicine, University of Oslo, Oslo, Norway
7. Department of Endocrinology, Obesity and Nutrition, Vestfold Hospital Trust, Tønsberg, Norway
8. Department of Endocrinology, Morbid Obesity and Preventive Medicine Institute of Clinical Medicine, the Faculty of Medicine, University of Oslo, Oslo, Norway