1. Department of Information Management, Chaoyang University of Technology, Taichung, Taiwan
2. College of Computer and Information Engineering, Xiamen University of Technology, No. 600, Ligong Rd., Jimei District, Xiamen, Fujian, China
3. Library, Chienkuo Technology University, Changhua, Taiwan
4. Taichung Hospital, Ministry of Health and Welfare, Executive Yuan, Taichung, Taiwan