1. Department of Pathology; Ohio State University Wexner Medical Center; Columbus Ohio
2. Departments of Medicine and Pathology; UMass Memorial Medical Center; Worcester Massachusetts
3. Department of Pathology; University of Colorado Hospital; Aurora Colorado
4. Rush University Medical Center; Chicago Illinois
5. Department of Pathology; Children's Hospital Colorado, University of Colorado Anschutz Medical Center; Aurora Colorado
6. Department of Laboratory Medicine and Pathology; Mayo Clinic; Jacksonville Florida
7. Department of Pathology and Microbiology; University of Nebraska Medical Center; Omaha Nebraska
8. the Children's Mercy Hospitals and Clinics; Kansas City Missouri
9. Department of Pathology, Division of Laboratory Medicine; University of Alabama at Birmingham; Birmingham Alabama
10. Department of Pathology; University of Chicago; Chicago Illinois
11. Department of Pathology and Laboratory Medicine; University of Wisconsin School of Medicine; Madison Wisconsin