1 College of Medicine, China Medical University, Taichung, Taiwan; Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan.
2 College of Medicine, China Medical University, Taichung, Taiwan; Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan.
3 Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan; Department of Internal Medicine, Taichung Tzu Chi General Hospital, Taichung, Taiwan. Electronic address: kuanfuliao@yahoo.com.tw.
4 Department of Internal Medicine, Taichung Tzu Chi General Hospital, Taichung, Taiwan.