1. Department of Nephrology, Tainan Municipal Hospital, Tainan, Taiwan.
2. Department of Internal Medicine, Tainan Municipal Hospital, Tainan, Taiwan.
3. Department of Clinical Laboratory, Tainan Municipal Hospital, Tainan, Taiwan.
4. Department of Laboratory Medicine, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taoyuan, Taiwan.
5. Department of Infectious Diseases, Tainan Municipal Hospital, Tainan, Taiwan.