1. Department of General Surgery and Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
2. Department of Hepatic-Biliary-Pancreatic Surgery, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
3. Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.
4. Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
5. Central Laboratory, Clinical Medicine Scientific and Technical Innovation Park, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
6. Department of Metabolic Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.