1. Department of Medicine, University of Cambridge, Cambridge, United Kingdom,
2. Department of Pediatrics, University of Kwazulu Natal, Durban, South Africa,
3. Department of Medicine, University of Lagos/Lagos University Teaching Hospital, Lagos, Nigeria,
4. Department of Medicine, Division of Pulmonology, University of Cape Town, Cape Town, South Africa,
5. Makerere University Lung Institute, Kampala, Uganda,
6. Department of Pulmonology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey,
7. Department of Medicine, Kenyatta University, Teaching Hospital, Nairobi, Kenya,
8. The Woolcock Institute of Medical Research, The University of Sydney, Syndey, Australia,