T-C Li1,2, C-C Lin3,4,5. 1. Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan. 2. Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan. 3. School of Medicine, College of Medicine, China Medical University, 91 Hsueh-Shih Road, Taichung, 40421, Taiwan. cclin@mail.cmuh.org.tw. 4. Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan. cclin@mail.cmuh.org.tw. 5. Department of Medical Research, China Medical University Hospital, Taichung, Taiwan. cclin@mail.cmuh.org.tw.