1. Department of Surgery, Aga Khan University, Karachi, Pakistan.
2. Naya Jeevan, Karachi, Pakistan.
3. Institute for Neurological Research Dr Raúl Carrea, Buenos Aires, Argentina.
4. Massachusetts Board of Registration in Medicine, Boston, Massachusetts.
5. Division of Trauma, Emergency Surgery and Surgical Critical Care (TESSCC), Massachusetts General Hospital, Boston, Massachusetts.