1. Department of Laboratory Medicine and Pathology University of Minnesota Minneapolis Minnesota USA
2. NHS Blood and Transplant Oxford UK
3. Radcliffe Department of Medicine University of Oxford Oxford UK
4. Department of Pathology and Immunology Washington University in St. Louis School of Medicine St Louis Missouri USA
5. Department of Laboratory Medicine and Pathology University of Washington Seattle Washington USA
6. Department of Pathology University of California San Diego La Jolla California USA
7. Department of Pathology The Johns Hopkins University School of Medicine Baltimore Maryland USA
8. Department of Molecular Microbiology and Immunology The Johns Hopkins University School of Public Health Baltimore Maryland USA
9. Canadian Blood Services Vancouver British Columbia Canada
10. Department of Pathology Dartmouth‐Hitchcock Medical Center Lebanon New Hampshire USA
11. University Health Network Ted Rogers Centre for Heart Research Toronto Ontario Canada
12. Department of Pathology and Laboratory Medicine NorthShore University HealthSystem Evanston Illinois USA
13. Mississippi Valley Regional Blood Center Springfield Illinois USA
14. Division of New York Blood Center Enterprises Innovative Blood Resources Saint Paul Minnesota USA
15. Department of Anesthesiology and Perioperative Medicine Mayo Clinic Rochester Minnesota USA
16. Department of Pathology University of Utah Salt Lake City Utah USA
17. Department of Pathology University of New Mexico Albuquerque New Mexico USA
18. Vanderbilt University Medical Center Division of Allergy, Pulmonary, and Critical Care Medicine Nashville Tennessee USA
19. Department of Pathology Duke University Durham North Carolina USA
20. Vitalant Scottsdale Arizona USA
21. Department of Laboratory Medicine and Pathology Mayo Clinic Rochester Minnesota USA
22. Patient Representative Minneapolis Minnesota USA