1. London School of Hygiene and Tropical Medicine, Clinical Research, Keppel Street, WC1E 7HT, UK
2. ALERT, Leprosy Clinic, Jimma Road, Ethiopia
3. All Africa Leprosy Rehabilitation and Training (ALERT) Center, Addis Ababa, Dermatology, Ethiopia
4. School of Health Sciences, University of Southampton, SO17 1BJ, UK