1. Department of Operations and Information Systems, David Eccles School of Business, University of Utah , Salt Lake City, Utah, USA
2. Department of Information Systems, College of Business, California State University Long Beach , Long Beach, California, USA
3. Department of General Surgery, Keelung Chang Gung Memorial Hospital , Keelung City, Taiwan
4. Department of Chinese Medicine, College of Medicine, Chang Gung University , Taoyuan City, Taiwan
5. Community Medicine Research Center, Keelung Chang Gung Memorial Hospital , Keelung City, Taiwan