1. Mycobacteria/Nocardia Research Laboratory, University of Texas Health Science Center at Tyler, Tyler, Texas, USA
2. Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota, USA
3. Department of Biology, University of Regina, Regina, Saskatchewan, Canada
4. Cadham Provincial Laboratory, Diagnostic Services, Shared Health, Winnipeg, Manitoba, Canada
5. Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Canada