1. Department of Clinical Medicine, The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu, China
2. Department of General Surgery, Gansu Provincial Hospital, Lanzhou, Gansu, China
3. School of Basic Medical Sciences, Evidence-Based Medicine Center, Lanzhou University, Lanzhou, Gansu, China
4. Key Laboratory of Molecular Diagnostics And Precision Medicine of Surgical Oncology, Gansu Provincial Hospital, Lanzhou, Gansu, China