1. Department of Thoracic Surgery The First Hospital of Lanzhou University Lanzhou People's Republic of China
2. Gansu University of Chinese Medicine Lanzhou People's Republic of China
3. The First Clinical Medical College of Lanzhou University Lanzhou People's Republic of China
4. Key Technology Development and Application of Thoracic Surgery Specialty Gansu Province International Science and Technology Cooperation Base Lanzhou People's Republic of China
5. Medical Quality Control Center of Thoracic Surgery in Gansu Province Lanzhou People's Republic of China