1. Division of General Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
2. Department of Endocrinology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
3. Department of Cell Biology, Key Laboratory of the Education Ministry for Cell Differentiation and Apoptosis, Institutes of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China.