1. Hirslanden Medical Group Salem Spital, Institute of Anaesthesiology and Intensive Care, Bern, Switzerland

2. University of Bern, Institute for Medical Education, Bern, Switzerland

3. University of Porto Faculty of Medicine, Centre for Health Technology and Services Research, Porto, Portugal

4. University of Bern, Bern, Switzerland

5. Ankara University Faculty of Medicine, İbn-i Sina Hospital, Department of Anaesthesiology and Intensive Care Unit, Ankara, Turkey

6. Ankara University Brain Research Center (AÜBAUM), Ankara, Turkey