1. Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center , Nashville, Tennessee, USA
2. Laboratory Medicine, Deaconess Health System , Evansville, Indiana, USA
3. Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine , Chapel Hill, North Carolina, USA
4. Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California , Los Angeles, California, USA
5. Department of Pathology and Laboratory Medicine, Loyola University , Chicago, Illinois, USA
6. Department of Medicine, University of Virginia School of Medicine , Charlottesville, Virginia, USA
7. Department of Pathology, Johns Hopkins University , Baltimore, Maryland, USA