1. Division of Trauma, Emergency Surgery & Surgical Critical Care, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
2. MGH Biostatistics Center, Harvard Medical School; Department of Global Health, Boston University School of Public Health, Boston, MA, USA
3. Hikma Health, San Jose, CA, USA
4. Harvard Medical School, Boston, MA, USA
5. University of Toronto, Toronto, ON, USA
6. Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA