1. Microbiology Services–Colindale, Health Protection Agency, London
2. Division of Infection and Immunity
3. Research Department of Infection and Population Health, University College London
4. St Mary's Hospital, London
5. Centre for Hepatology, Division of Medicine, University College London
6. Institute of Hepatology and Foundation for Liver Research, London
7. Guy's and St Thomas’ Hospital, London
8. Bradford Teaching Hospitals NHS Foundation Trust, Bradford
9. Freeman Hospital, Newcastle upon Tyne
10. Gartnavel General Hospital, Glasgow
11. Queen Elizabeth Hospital, Birmingham
12. Nottingham University Hospitals NHS Trust
13. Royal Infirmary of Edinburgh
14. Royal Cornwall Hospital, Truro
15. Ninewells Hospital, Dundee
16. Southampton General Hospital, Southampton
17. Maidstone Hospital, Maidstone
18. John Radcliffe Infirmary, Oxford
19. Chelsea and Westminster Hospital, London, United Kingdom