| Institution: | 1. Spanish Difficult Airway Group (GEVAD), Spain;2. Department of Anaesthesiology, Salamanca University Hospital, Salamanca, Spain;3. Department of Anaesthesia and Perioperative Medicine, Complejo Hospitalario Universitario de A Coruña, A Coruña, Galicia, Spain;4. Anaesthesiology, Perioperative Medicine and Pain Management Research Group, A Coruña, Spain;5. Preventive Medicine and Quality Management Service, Hospital General Universitario Gregorio Marañón, Spain;6. Oxford University Hospitals NHS Foundation Trust, Oxford, UK |
