1. Emeritus Professor of Tropical Medicine, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
2. Consultant Physician (retired), Hospital for Tropical Diseases, University College London Hospitals NHS Foundation Trust, London, UK
3. Tropical Medicine Centre, University of Brasília, Fiocruz School of Government Brasília, Brazil
4. Research Fellow, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
5. All Africa Leprosy Research and Training Centre, Addis Ababa, Ethiopia
6. Director, Bombay Leprosy Project, Mumbai, Maharashtra, India
7. Consultant Dermatologist, Hospital for Tropical Diseases and Department of Dermatology, University College London Hospitals NHS Foundation Trust, London, UK
8. Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK