Totally 231 CPG patients of SDDHS were enrolled in this study ( including 60 patients from First Affiliated Hospital of Nanjing University of Chinese Medicine , 58 from First Affiliated Hospital of Nanjing Medical University , 46 from Xinqiao Hospital of Third Military Medical University , 35 from First Affiliated Hospital of Guangzhou University of Chinese Medicine , 14 from First Affiliated Hospital of Soochow University , and 18 from Wuxi Affiliated Hospital of Nanjing University of Chinese Medicine ) .