1. Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota, USA
2. Mycobacteria/Nocardia Research Laboratory, University of Texas at Tyler Health Science Center, School of Medicine Tyler, Tyler, Texas, USA
3. Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
4. University of South Florida College of Public Health and Morsani College of Medicine, Tampa, Florida, USA
5. Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Manitoba, Canada
6. Department of Laboratory Medicine, Microbiology Service, Clinical Center, NIH, Bethesda, Maryland, USA