1. Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Ningbo University, Ningbo, Zhejiang, China.
2. School of Nursing, Ningbo College of Health Sciences, Ningbo, Zhejiang, China.
3. Department of Nursing, The First Hospital of Ningbo University, Ningbo, Zhejiang, China.
4. Outpatient Department, The First Hospital of Ningbo University, Ningbo, Zhejiang, China.