1. The Second Clinical Medical College of Lanzhou University, Lanzhou, China
2. Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
3. Key Laboratory of Evidence-Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China
4. Evidence-Based Nursing Center, School of Nursing, Lanzhou University, Lanzhou, China
5. Department of Respiratory Medicine, First Hospital of Lanzhou University, Lanzhou, China
6. Department of Radiology, Gansu Provincial Cancer Hospital, Lanzhou, China