1 Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town, South Africa.
2 Service de Médecine Intensive Adulte (SMIA), Centre Hospitalier Universitaire Vaudois (CHUV), Rue du Bugnon, 46, 1011, Lausanne, Switzerland.
3 Division of Intensive Care and Emergency Medicine, Department of Internal Medicine, Medical University Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria. michael.joannidis@i-med.ac.at.