1. Departement of Anaesthesia and Intensive Care, Ankara University Faculty of Medicine
2. Ankara University Brain Research Center (BAUM), Ankara, Turkey
3. Institute of Anaesthesiology and Intensive Care, Salemspital, Hirslanden Medical Group
4. Institute for Medical Education, University of Bern, Bern, Switzerland
5. CINTESIS-Center for Health Technology and Services Research, Faculty of Medicine, Porto, Portugal
6. Department of Anaesthesia and Intensive Care, Sjaellands University Hospital Nykøbing Falster, & University of Southern Denmark, Odense, Denmark