1. Center for Surgery and Public Health, Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
2. Department of Surgery, Harvard Medical School, Boston, Massachusetts
3. Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worchester
4. Division of Trauma, Burn and Surgical Critical Care, Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
5. Medical College, The Aga Khan University, Karachi, Pakistan