1. Department of Orthopedics Tri‐Service General HospitalNational Defense Medical Center Taipei Taiwan
2. Graduate Institute of Injury Prevention and Control College of Public HealthTaipei Medical University Taipei Taiwan
3. School of Public Health National Defense Medical Center Taipei Taiwan
4. Department of Medical Research Tri‐Service General HospitalNational Defense Medical Center Taipei Taiwan
5. Taiwanese Injury Prevention and Safety Promotion Association Taipei Taiwan
6. Graduate Institute of Life Sciences National Defense Medical Center Taipei Taiwan