Affiliation: | 1. Evidence-Based Medicine Center, Lanzhou University, Lanzhou, China.; 2. Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, Lanzhou University, Lanzhou, China.; 3. School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.; 4. The First Clinical Medicine School, Lanzhou University, Lanzhou, China.; 5. The Second Clinical Medical School, Lanzhou University, Lanzhou, China.; Cardiff University, United Kingdom, |