1. Diagnostic Imaging Center Kuopio University Hospital Kuopio Finland
2. Department of Applied Physics University of Eastern Finland Kuopio Finland
3. The School of Medicine University of Eastern Finland Kuopio Finland
4. Department of Emergency Care Kuopio University Hospital Kuopio Finland
5. Department of Clinical Neurophysiology Seinäjoki Central Hospital Seinäjoki Finland
6. Sleep Disorders Centre, Department of Respiratory & Sleep Medicine Princess Alexandra Hospital Woolloongabba Queensland Australia
7. Institute for Health and Biomedical Innovation Queensland University of Technology Brisbane Queensland Australia
8. Institute of Clinical Medicine University of Eastern Finland Kuopio Finland