1. Department of Epidemiology, Biostatistics and Occupational Health; McGill University; Montreal Canada
2. Centre for Outcomes Research; McGill University Health Centre - Research Institute; Montreal Canada
3. Centre for Lung Infection and Immunity Unit, Department of Medicine and UCT Lung Institute; University of Cape Town; Cape Town South Africa
4. Faculty of Infectious and Tropical Diseases, Department of Immunology and Infection; London School of Hygiene and Tropical Medicine; London UK
5. FIND; Geneva Switzerland
6. Division of Tropical Medicine, Centre for Infectious Diseases; University Hospital Heidelberg; Heidelberg Germany
7. Honorary Research Fellow; Department of Clinical Sciences, Liverpool School of Tropical Medicine; Liverpool UK