1. Department of Business Data Convergence, Chungbuk National University, Cheongju, Korea.
2. Department of Information Industry Engineering, Chungbuk National University, Cheongju, Korea.
3. Department of Health Informatics and Management, College of Medicine, Chungbuk National University, Cheongju, Korea.
4. Department of Management Information Systems, College of Business, Chungbuk National University, Cheongju, Korea.