1. Department of Pathology and Cell Biology; Columbia University Medical Center; New York New York
2. Blood Center of Wisconsin, Department of Pathology; Medical College of Wisconsin; Milwaukee Wisconsin
3. Department of Pathology and Laboratory Medicine, Perelman School of Medicine; University of Pennsylvania; Philadelphia Pennsylvania
4. Division of Nephrology; University of Virginia; Charlottesville Virginia
5. Department of Medicine; Seattle Cancer Care Alliance and University of Washington; Seattle Washington
6. Bloodworks Northwest, Department of Laboratory Medicine; University of Washington; Seattle Washington
7. Department of Pathology and Laboratory Medicine; Dartmouth-Hitchcock Medical Center; Lebanon New Hampshire
8. Department for Pediatrics; St. Anna Kinderspital, Medical University of Vienna; Vienna Austria
9. Bloodworks Northwest, Department of Laboratory Medicine; Yale University School of Medicine; New Haven Connecticut
10. New York Blood Center, Department of Pathology
11. Department of Pathology and Laboratory Medicine; Emory University School of Medicine; Atlanta Georgia