1. Gastrointestinal Surgery Department, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, P.R. China
2. Suzhou Cancer Center Core Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, P.R. China
3. Clinical Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, P.R. China
4. Thyroid and Breast Surgery Department, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu 215000, P.R. China
5. General Surgery, The Second Clinical Medical College, Yangtze University, Jingzhou Central Hospital, Jingzhou, Hubei 434020, P.R. China
6. Colorectal Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, Jiangsu 215009, P.R. China
7. Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, P.R. China