1. Data management, Rakai Health Sciences Program, Rakai, Uganda
2. Population Health, London School of Hygiene and Tropical Medicine, London, UK
3. Centre for Demographic Studies (CED), Universitat Autònoma de Barcelona, Barcelona, Spain
4. Usher Institute, University of Edinburgh, Edinburgh, UK
5. Epidemiology and Biostatistics, Makerere University School of Public Health, Kampala, Uganda
6. College of Health Sciences, Makerere University School of Medicine, Kampala, Uganda
7. Epidemiology and International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA