1. D. R. Sherman, M. J. Hickey, T. M. Arain, C. K. Stover, Laboratory of Tuberculosis and Molecular Microbiology, PathoGenesis Corporation, 201 Elliott Avenue West, Seattle, WA 98119, USA.
2. K. Mdluli and C. E. Barry III, Tuberculosis Research Unit, Laboratory of Intracellular Parasites, National Institutes for Allergy and Infectious Diseases, Rocky Mountain Laboratories, Hamilton, MT 59840, USA.
3. S. L. Morris, Laboratory of Mycobacteria, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD 20892, USA.