1. Department of Laboratory Medicine, Yale School of Medicine, New Haven, Connecticut, USA
2. Department of Laboratory Medicine, Cleveland Clinic, Cleveland, Ohio, USA
3. Department of Pathology and Laboratory Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
4. Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
5. Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
6. Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
7. Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
8. Florida Department of Health, Bureau of Public Health Laboratories, Jacksonville, Florida, USA
9. Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
10. Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
11. Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
12. Department of Pathology and Laboratory Medicine, University of Vermont Medical Center, Burlington, Vermont, USA