1 Department of Laboratory Medicine, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, China.
2 Department of Internal Medicine, Mercer University School of Medicine, Macon, GA, USA.
3 Department of Laboratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China. Electronic address: huaguoxu@njmu.edu.cn.