1 Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town, South Africa.
2 Department of Pediatric Radiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States.
3 Department of Cardio-Thoracic Surgery, Stellenbosch University and Tygerberg Hospital, Tygerberg, South Africa.
4 Division of Nuclear Medicine, Faculty of Medicine and Health Sciences and NuMeRI Node for infection Imaging, Central Analytical Facillities, Stellenbosch University, Stellenbosch, South Africa.
5 Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences and Desmond Tutu TB Centre, Stellenbosch University, Stellenbosch, South Africa.