1. Clinical Cancer Research Center, Jiangsu Cancer Hospital and Cancer Institute of Jiangsu Province and The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu 210009, P.R. China
2. Clinical Laboratory, Yixing People's Hospital, Yixing, Jiangsu 214200, P.R. China
3. Genesmile Company, Nanjing, Jiangsu 210009, P.R. China