1. Department of Clinical Medicine, The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China
2. Institution of Clinical Research and Evidence-Based Medicine, Gansu Provincial Hospital, Lanzhou 730000, China
3. General Surgery Clinical Medical Center, Gansu Provincial Hospital, Lanzhou 730000, China
4. Key Laboratory of Molecular Diagnosis and Precision Therapy of Surgical Tumors of Gansu Province, Lanzhou 730000, China
5. Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
6. Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou 730000, China