1. Department of Information Systems, College of Business City University of Hong Kong Kowloon Hong Kong
2. Department of Research and Education, Guangzhou First People's Hospital South China University of Technology Guangzhou China
3. Department of Neurosurgery, Guangzhou First People's Hospital, School of Medicine South China University of Technology Guangzhou China
4. Information Systems and Technology Department, College of Business Administration University of Missouri – Saint Louis St. Louis Missouri USA