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