1. Department of Surgical and Perioperative Sciences, Clinical Physiology, Heart Centre, Umeå University,
Umeå, Sweden
2. Department of Public Health and Clinical Medicine, Umeå University,
Umeå, Sweden
3. Department of Radiation Sciences, Biomedical Engineering, Umeå University,
Umeå, Sweden
4. Centre of Biomedical Engineering & Physics, Umeå University, Umeå, Sweden