1. Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, NTNU , Postbox 8905, Prinsesse Kristinas gate 3, 7030 Trondheim , Norway
2. Clinic of Cardiology, St. Olavs University Hospital , Prinsesse Kristinas gate 3, 7030 Trondheim , Norway
3. Department of Nephrology, Clinic of Medicine, St. Olavs Hospital, Trondheim University Hospital , Prinsesse Kristinas gate 3, 7030 Trondheim , Norway
4. Clinic of Clinical Services, St. Olavs University Hospital , Prinsesse Kristinas gate 3, 7030 Trondheim , Norway
5. National Advisory Unit on Exercise Training as Medicine for Cardiopulmonary Conditions, St. Olav’s Hospital , Prinsesse Kristinas gate 3, 7030 Trondheim , Norway
6. Centre for Elite Sports Research, Department of Neuroscience, Norwegian University of Science and Technology , Smistadvegen 11, 7026 Trondheim , Norway
7. Department of Medicine, Levanger Hospital, Nord-Trøndelag Hospital Trust , Kirkegata 2, 7600 Levanger , Norway