1 Deptartment of Intensive Care, Copenhagen University Hospital, Gentofte, Hellerup, Denmark.
2 Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
3 Medical ICU, Cochin Hospital, Assistance Publique-Hôpitaux de Paris. Centre & University Paris Cité, Paris, France.
4 Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St James' Hospital, Dublin, Ireland. drmartinloeches@gmail.com.