1. Department of Cardiothoracic Surgery, St. Olav’s Hospital, Trondheim University Hospital, Trondheim, Norway
2. National Competence Centre for Complex Symptom Disorders, St. Olav’s Hospital, Trondheim University Hospital, Trondheim, Norway
3. Faculty of Nursing, Sør-Trøndelag University College, Trondheim, Norway
4. Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway
5. Department of Intensive Care Medicine, St. Olav’s Hospital, Trondheim University Hospital, Trondheim, Norway
6. The Regional Centre for Child and Adolescent Mental Health, Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway
7. Department of Cardiothoracic Anaesthesiology St. Olav’s Hospital, Trondheim University Hospital, Trondheim, Norway