1. Clinical Services, Norwegian University of Science and Technology, Trondheim, Norway
2. Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
3. Department of Cardiology, St. Olav's Hospital, Trondheim University Hospital, Departments of Norwegian University of Science and Technology, Trondheim, Norway
4. Public Health and General Practice, Norwegian University of Science and Technology, Trondheim, Norway