1. Section of Anaesthesiology and Intensive Care; Department of Clinical Science and Education; Karolinska Institutet; Södersjukhuset; Stockholm Sweden
2. Department of Intensive Care; Copenhagen University Hospital; Rigshospitalet; Copenhagen Denmark
3. Section of Anaesthesia and Intensive Care Medicine; Department of Physiology and Pharmacology; Karolinska Institutet; Stockholm Sweden
4. Department of Intensive Care; Austin Hospital; Melbourne Vic. Australia