1 Pancreatic Center, Department of Gastroenterology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.
2 Yangzhou Key Laboratory of Pancreatic Disease, Institute of Digestive Diseases, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.
3 Department of Nursing, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.
4 Department of Oncology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
5 Department of Gastroenterology, Changhai Hospital, The Second Military Medical University, Shanghai, China.