1. Key Laboratory of Preclinical Study for New Drug of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
2. General Surgery Department, The First Hospital of Lanzhou University, The First Clinical Medical College, Lanzhou University, Lanzhou 730000, Gansu Province, China
3. Key Laboratory of Biological Therapy and Regenerative Medicine, Gansu Province, China