1 Department of Intensive Care, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark. peter.buhl.hjortrup@regionh.dk.
2 Istituto Anestesiologia E Rianimazione, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Largo Francesco Vito, 1, 00168, Rome, Italy.
3 Intensive Care Unit, Liverpool Hospital, South Western Sydney Local Health District, South Western Sydney Clinical School, University of New South Wales, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia.