1. Department of Pathology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
2. Laboratory of Pathogenic Microbiology and Immunology, Anhui Medical University, Hefei, Anhui, China
3. Department of Pathology, Anhui Medical University, Hefei, Anhui, China
4. Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China