1. Regional Trauma Services, Calgary Health Region and Foothills Medical Centre, Calgary, Alberta
2. Department of Surgery, Calgary Health Region and Foothills Medical Centre, Calgary, Alberta
3. Department of Emergency Medicine, Calgary Health Region and Foothills Medical Centre, Calgary, Alberta
4. Banff Mineral Springs Hospital, Banff, Alberta, Canada
5. Wyle Life Sciences, Houston, Texas, USA
6. Department of Critical Care Medicine, Calgary Health Region and Foothills Medical Centre, Calgary, Alberta