1. Department of Orthopedic Surgery, Taoyuan General Hospital, Ministry of Health & Welfare, Taoyuan 33004, Taiwan
2. Institute of Public Health, National Yang-Ming University, Taipei 11221, Taiwan
3. Department of Information Management, Yuan Ze University, Taoyuan 32003, Taiwan
4. Department of Neurologic Surgery, Taipei City Hospital, Taipei 10341, Taiwan
5. Department of Computer Science and Technology, Xiamen University of Technology, Xiamen 361024, China
6. Department of Orthopedic Surgery, National Taiwan University Hospital, Taipei 10048, Taiwan
7. Department of Nursing, College of Medicine, National Taiwan University, Taipei 10617, Taiwan
8. Department of Nursing, School of Nursing, Chang Gang University, Taoyuan 33302, Taiwan