1 Division of Infectious Diseases, Department of Medicine, China Medical University Hospital, Taichung, Taiwan.
2 Department of Laboratory Medicine, China Medical University Hospital, Taichung, Taiwan.
3 Department of Neurology, China Medical University Hospital, Taichung, Taiwan.
4 Departments of Laboratory Medicine and Internal Medicine, China Medical University Hospital, Taichung, Taiwan; School of Medicine, China Medical University, Taichung, Taiwan,; PhD Programme for Aging, School of Medicine, China Medical University, Taichung, Taiwan. Electronic address: hsporen@ntu.edu.tw.