1. Institute of Epidemiology and Health Care, University College London, UK
2. Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK, Desmond Tutu HIV Centre, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences,
University of Cape Town, Cape Town, South Africa
3. TB Service, University College London Hospitals NHS Trust, London, UK
4. Institute for Global Health, University College London, UK