1. National TB Control Programme, Ministry of Health, Manzini, Swaziland
2. Institute of Tropical Medicine, Antwerp, Belgium
3. University of Bergen, Bergen, Norway
4. Médecins Sans Frontières (MSF), Operational Centre Brussels, Kenya Mission, Nairobi, Kenya
5. MSF, Medical Department, Operational Research Unit, Luxembourg
6. International Union Against Tuberculosis and Lung Disease, Paris, France, London School of Hygiene & Tropical Medicine, London, UK