1. Trauma and Transfusion Medicine Research Center, Department of Surgery University of Pittsburgh Pittsburgh PA USA
2. Department of Surgery, Division of Acute Care Surgery Washington University School of Medicine St. Louis Missouri USA
3. Clinical Research Support Branch The Geneva Foundation Fort Sam Houston Texas USA
4. Naval Medical Research Unit –San Antonio Fort Sam Houston Texas USA
5. Departments of Anesthesiology, Critical Care, and Surgery (Cardiothoracic) Duke University School of Medicine, Durham, North Carolina USA Durham North Carolina‐NC 27710 USA
6. United States Army Institute of Surgical Research Fort Sam Houston Texas USA