1. Division of Traumatology, Surgical Critical Care & Emergency Surgery Perelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA
2. Leonard Davis Institute for Health Economics University of Pennsylvania Philadelphia Pennsylvania USA
3. Department of Surgery Uniformed Services University F. Edward Hébert School of Medicine Bethesda Maryland USA
4. Sackler School of Medicine at Tel Aviv University Tel Aviv Israel
5. Biomedical Services, American Red Cross Philadelphia Pennsylvania USA
6. U.S. Army Institute of Surgical Research, Joint Base San Antonio‐FT Sam Houston Texas USA
7. Canadian Blood Services Vancouver British Columbia Canada
8. NIHR Surgical Reconstruction and Microbiology Research Centre Institute of Translational Medicine Birmingham UK
9. Department of Surgery University of California Davis Medical Center Sacramento California USA
10. Department of Pathology, Division of Transfusion Medicine Johns Hopkins University School of Medicine Baltimore Maryland USA
11. Department of Surgery, Division of Trauma and Emergency Surgery University of Texas Health Science Center at San Antonio San Antonio Texas USA
12. Department of Research AABB Bethesda Maryland USA
13. Mayo Clinic Rochester Minnesota USA
14. Department of Biostatistics, Epidemiology and Informatics University of Pennsylvania Philadelphia Pennsylvania USA
15. Penn Injury Science Center University of Pennsylvania Philadelphia Pennsylvania USA
16. Department of Pathology University of Pittsburgh Pittsburgh Pennsylvania USA
17. Department of Surgery University of Pittsburgh Pittsburgh Pennsylvania USA
18. Department of Critical Care Medicine University of Pittsburgh Pittsburgh Pennsylvania USA