1 From the Department of Anaesthesiology, RWTH Aachen University Hospital, Germany (LG, SO, RR, JL), Department of Anaesthesiology Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands (NHSW), Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Hospital Würzburg, Würzburg (BS) and Department of Anaesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany (AK, MC).