1. Access Campaign, Médecins Sans Frontières, 78 Rue de Lausanne, PO Box 116, Geneva, CH1211, Switzerland.
2. Médecins Sans Frontières, London, England.
3. Médecins Sans Frontières, Paris, France.
4. Médecins Sans Frontières, Cape Town, South Africa.
5. Partners in Health, Boston, United States of America (USA).
6. Boston University School of Public Health, Boston, USA.
7. Department of Global Health and Social Medicine, Harvard Medical School, Boston, USA.
8. Center for Tuberculosis Research, Johns Hopkins University, Baltimore, USA.
9. Division of Clinical Pharmacology, University of Cape Town, Cape Town, South Africa.
10. Medical Research Council Clinical Trials Unit, London, England.