1. Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education) Chongqing Medical University Chongqing China
2. Department of Gastrointestinal Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing China
3. Department of Endocrine and Breast Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing China
4. The People's Hospital of Rongchang District Chongqing China