1. Department of Laboratory Medicine and Pathology; University of Minnesota; Minneapolis Minnesota
2. Department of Laboratory Medicine; University of Washington; Seattle Washington
3. Department of Pathology and Laboratory Medicine; University of North Carolina; Chapel Hill North Carolina
4. Hematology/Oncology Division; University of Pittsburgh Medical Center Presbyterian-Shadyside Hospital; Pittsburgh Pennsylvania
5. Department of Pathology and Laboratory Medicine; University of Rochester Medical Center; Rochester New York
6. LifeSource Blood Center; Illinois
7. Department of Pathology and Laboratory Medicine; University of Kentucky; Lexington Kentucky
8. Department of Pathology and Laboratory Medicine; New York University; New York New York
9. Consultant; Denver Colorado
10. Department of Pathology; University of Michigan; Ann Arbor Michigan
11. Bloodworks; Seattle Washington
12. Department of Coagulation; Quest Diagnostics Nichols Institute; Virginia
13. Departments of Pediatrics and Pathology; George Washington School of Medicine and Health Sciences; Washington DC