1. Department of Surgery; Massachusetts General Hospital; Boston MA USA
2. Western University of Health Sciences; Pomona CA USA
3. Department of Anesthesiology; Stanford University; Stanford CA USA
4. Department of Trauma and Critical Care; Broward General Medical Center; Fort Lauderdale FL USA
5. Division of Trauma; Burns, and Surgical Critical Care; Brigham & Women's Hospital; Boston MA USA
6. Surgical Critical Care Section; Veterans Affairs Portland Health Care System; Portland OR USA
7. Department of Surgery; Oregon Health & Science University; Portland OR USA