1. Department of Adult Anaesthesiology Sidra Medicine Qatar
2. Department of Otolaryngology Head and Neck Surgery Com Maillot‐Hartmann Private Hospital Neuilly sur Seine France
3. Department of Anaesthesiology, Intensive Care and Pain Medicine University Hospital Muenster Muenster Germany
4. Department of Anaesthesiology Oslo University Hospital and Faculty of Medicine University of Oslo Oslo Norway
5. Department of Anaesthesiology and Critical Care Université Rennes Rennes France