1. Department of Pathology; University of Alabama at Birmingham; Birmingham Alabama
2. Department of Pathology and Cell Biology; New York-Presbyterian Hospital and Columbia University; New York New York
3. Department of Pathology; University of Michigan; Ann Arbor Michigan
4. Department of Medicine; California Pacific Medical Center; San Francisco California
5. Department of Pathology; Children's Hospital of Philadelphia; Philadelphia Pennsylvania
6. Department of Pediatrics; Children's Hospital of Philadelphia; Philadelphia Pennsylvania
7. Department of Laboratory Medicine and Pathology; University of Minnesota; Minneapolis Minnesota
8. Medical Division; Bloodworks Northwest; Seattle Washington
9. Department of Pediatrics; Ann and Robert H. Lurie Children's Hospital of Chicago; Chicago Illinois
10. Division of Transfusion Medicine; Mayo Clinic; Rochester Minnesota
11. Department of Laboratory Medicine; Children's National Health System; Washington, District Columbia
12. Department of Laboratory Medicine; Yale University School of Medicine; New Haven, Connecticut