1. Cluster Trauma Advisory Committee, Tuen Mun Hospital, Tuen Mun, Hong Kong
2. A&E Department, Tin Shui Wai Hospital, Tin Shui Wai, Hong Kong
3. Department of Radiology, Tuen Mun Hospital, Tuen Mun, Hong Kong
4. EM Unit, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
5. A&E Department, Pok Oi Hospital, Yuen Long, Hong Kong
6. Department of Surgery, Queen Elizabeth Hospital, Kowloon, Hong Kong
7. Department of Orthopaedics, Queen Elizabeth Hospital, Kowloon, Hong Kong