1. Department of Family Medicine, Taichung Veterans General Hospital, Taichung City, Taiwan
2. Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung-Hsing University, Taichung, Taiwan
3. Computer & Communication Center, Taichung Veterans General Hospital
4. Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung City, Taiwan
5. School of Accounting, College of Business, University of Economics Ho Chi Minh City, Vietnam
6. Department of Information Management, Lunghwa University of Science and Technology, Taoyuan