1. Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;
2. Department of Clinical Biochemistry, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;
3. Department of Neuroanaesthesiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;
4. Department of Cardiology, Section for Lung Transplantation, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;
5. Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark;
6. Department of Medicine, The National Hospital, Torshavn, Faroe Islands;
7. Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark;
8. Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark