1. Department of Surgery, Boston Children's Hospital, Harvard Medical System, Boston, Massachusetts, USA.
2. Department of Surgery, University of California-Irvine, Orange, California, USA.
3. Division of Trauma, Burns, Acute and Critical Care, Department of Surgery, Weill Cornell Medicine, New York, New York USA.
4. Department of Surgery, Division of Trauma, Critical Care, Burns, and Acute Care Surgery, Case Western Reserve University School of Medicine, MetroHealth Medical Center, Cleveland, Ohio, USA.
5. Divisions of General Surgery and Critical Care, Department of Surgery, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada.
6. Division of Trauma and Acute Care Surgery, Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama, USA.
7. Division of Acute Care Surgery, Department of Surgery, University of Kansas Medical Center, Kansas City, Kansas, USA.