1. Department of Anaesthesiology and Pain Medicine Inselspital, Bern University Hospital, University of Bern Bern Switzerland
2. Institute of Anaesthesiology and Intensive Care Salem Spital, Hirslanden Hospital Group Bern Switzerland
3. Institute for Medical Education University of Bern Bern Switzerland
4. CINTESIS@RISE, Centre for Health Technology and Services Research, Faculty of Medicine University of Porto Porto Portugal