1 CHU Poitiers Intensive Care Unit, CIC Inserm 1402, University of Poitiers, Alive, France. rene.robert@chu-poitiers.fr.
2 Division of Intensive Care, Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
3 Pulmonary Division, Heart Institute (InCor), Hospital das Clinicas (HC-FMUSP), Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil.