1 From the Unit for Research & Innovation, Department of Paediatric Anaesthesia, IRCCS Istituto Giannina Gaslini, Genova, Italy (ND), the Department of Anaesthesia, McGill University Health Center, Montreal Children's Hospital, Montreal, Quebec, Canada (TE), the Department of Anaesthesia & Intensive Care - Paediatrics, Odense University Hospital (TGH), the Department of Clinical Research - Anaesthesiology, University of Southern Denmark, Odense, Denmark (TGH).