1 Head of Clinical Unit: Paediatric Pulmonology and Paediatric Intensive Care, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town, South Africa.
2 Head of Division of Paediatric Pulmonology and Allergology and Chair of Department of Paediatrics and Adolescent Medicine, Medical University of Graz, Austria.