1. Department of HIV and Global Hepatitis Program World Health Organization Geneva Switzerland
2. Médecins Sans Frontières Access Campaign Geneva Switzerland
3. Department of Surgery and Cancer St Mary's Hospital, Imperial College London London United Kingdom
4. Department of Infectious Disease Epidemiology Imperial College London London United Kingdom
5. Médecins Sans Frontières Brussels Belgium
6. Department of Infectious Diseases and Institute of Social and Preventive Medicine University of Berne Berne Switzerland