1. Medical Command, Texas Army National Guard, Austin, TX 78763, USA
2. Department of Surgery, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA
3. 40th Forward Resuscitation and Surgical Detachment, 627th Hospital Center, 1st Medical Brigade, Fort Carson, CO 80913, USA
4. Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
5. Madigan Army Medical Center, Joint Base Lewis-McChord, WA 98431, USA
6. Joint Trauma System, Defense Health Agency, JBSA Fort Sam Houston, TX 78234, USA
7. United States Army Institute of Surgical Research, San Antonio, TX 78234, USA
8. Department of Emergency Medicine, Brooke Army Medical Center, Fort Sam Houston, TX 78234, USA