1 Department of Anaesthesia, Makerere University College of Health Sciences, Mulago National Referral Hospital, Kampala, Uganda.
2 Pulmonary and Critical Care Medicine, Mayo Clinic, Jacksonville, FL, USA.
3 Interdisciplinary Intensive Care Units, Department of Anesthesiology, Perioperative and General Intensive Care Medicine, University Hospital Salzburg and Paracelsus Private Medical University, Müllner Hauptstrasse 48, 5020, Salzburg, Austria. M.Duenser@salk.at.