1. Department of General Surgery; Zhangjiagang First People's Hospital of Suzhou; Suzhou Jiangsu
2. Eastern Hepatobiliary Surgery Hospital; Second Military Medical University; Shanghai
3. Department of General Surgery; Changshu First People's Hospital of Suzhou; Suzhou Jiangsu
4. Department of General Surgery; First Affiliated Hospital of Suzhou University of Suzhou; Jiangsu
5. Department of General Surgery; Jiaxing First Hospital; Jiaxing Zhejiang
6. Department of Surgery; The Chinese University of Hong Kong; Hong Kong