1. Population Health Sciences, Bristol Medical School University of Bristol Bristol UK
2. Department of Epidemiology Johns Hopkins Bloomberg School of Public Health Baltimore MD USA
3. Department of Infectious Disease Epidemiology Imperial College London UK
4. College of Engineering, Mathematics and Physical Sciences University of Exeter Exeter UK
5. Enda Sante Dakar Senegal
6. Institut de Recherche en Santé de Surveillance Epidemiologique et de Formations Dakar Senegal
7. Department of Health National AIDS Council of Senegal Dakar Senegal
8. Division de La Lutte Contre Le Sida et Les IST Ministry of Health Dakar Senegal
9. St Michaels Hospital University of Toronto Toronto Canada