1. St. Michael's Hospital, University of Toronto, Toronto, ON, Canada
2. University of Utah, Salt Lake City, UT
3. Paracelsus Medical University in Salzburg, Austria and Institute of Biomechanics at Trauma Centre Murnau, Salzburg, Germany
4. Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA
5. Department of Orthopaedic Surgery, University of Arizona College of Medicine, Phoenix, AZ
6. Department of Orthopaedic Surgery, University of California, San Francisco, CA
7. Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
8. Department of Trauma, University of Zurich, Zurich, Switzerland