1. Department of Surgery, University Medical Center Utrecht, Utrecht, The Netherlands
2. Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
3. Department of Neurology, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, The Netherlands
4. Management, Regional Ambulance Facilities Utrecht, Bilthoven, The Netherlands
5. Department of Emergency Medicine, Diakonessenhuis Utrecht/Zeist/Doorn, Utrecht, The Netherlands
6. Management, Trauma Center Utrecht, Utrecht, The Netherlands
7. Department of Surgery, Diakonessenhuis Utrecht/Zeist/Doorn, Utrecht, The Netherlands