1 School of Medicine, Chung Shan Medical University, Taichung, Taiwan.
2 Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.
3 Department of Allergy, Immunology & Rheumatology, Chung Shan Medical University Hospital, Institute of Medicine, College of Medicine, Chung Shan Medical University, Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan. Electronic address: jccwei@gmail.com.