1. Department of Nephrology, Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
2. School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China
3. Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, P.R. China