1. Department of Pharmacology
University of Liverpool
Ashton Street
Liverpool, L69 3GF
United Kingdom
2. Unit for Clinical and Biomedical TB Research
South African Medical Research Council
491, Ridge Road, P.O. Box 70380
Overport 4067, Durban
South Africa
3. Medical Microbiology
Department of Cellular and Molecular Medicine
St. George's Hospital Medical School
University of London
Crammer Terrace
London, SW17 0RE
United Kingdom