1. 75th Ranger Regiment FT Benning Georgia
2. Texas A&M College of Medicine Temple Bryan Texas
3. Texas Army National Guard San Antonio Texas
4. The Institute for Transfusion Medicine and Department of PathologyUniversity of Pittsburgh Pittsburgh Pennsylvania
5. University of Texas at San Antonio San Antonio Texas
6. Army Blood Program JBSA‐FT Sam Houston Texas
7. U.S. Army Institute of Surgical Research JBSA‐FT Sam Houston Texas