1. Population Health Research Institute, St George's University of London, London, UK
2. Facultad de Medicina Alberto Hurtado and Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru, Department of International Health, Bloomberg School of Public Health, Johns Hopkins University,
Baltimore, MD
3. Centre for Tuberculosis Research, Johns Hopkins School of Medicine, Baltimore, MD, USA