1. Department of Surgery, Uniformed Services University of the Health Sciences & the Walter Reed National Military Medical Center, 4301 Jones Bridge Road & 4494 N Palmer Road, Bethesda MD 20889.
2. Surgical Critical Care Initiative (SC2i), 4301 Jones Bridge Road, Bethesda, MD 20889.
3. Department of Surgery, Emory University, 201 Downman Dr. NE, Atlanta, GA 30322.
4. Department of Surgery, Duke University, DUMC 3710, Durham, NC 27710.