1. Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
2. School of Medicine, Tongji University, Shanghai, China
3. Department of Nephrology, The Affiliated Huai'an Hospital of Xuzhou Medical College and The Second People's Hospital of Huai'an, Huai'an, China
4. Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
5. Department of Clinical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, China