1. Department of Clinical Chinese Medicine integrated with Western Medicine, First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China
2. Central Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China
3. Nephropathy Department, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250014, P.R. China