1. Faculty of Public Health and Policy; London School of Hygiene and Tropical Medicine; London UK
2. Bristol Medical School, Population Health Sciences; University of Bristol; Bristol UK
3. Public Health Institute; Liverpool John Moores University; Liverpool UK
4. Kirby Institute for Infection and Immunity; UNSW; Sydney Australia
5. Glasgow Caledonian University, Glasgow, Scotland; UK
6. Public Health Wales; Cardiff Wales, UK CF10 4BZ
7. Bristol Drugs Project; Bristol UK
8. Cair Scotland; Dundee Scotland, UK