1. Department of Respiratory Medicine National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University Changsha China
2. Xiangya Lung Cancer Center Xiangya Hospital, Central South University Changsha China
3. Center of Respiratory Medicine Xiangya Hospital, Central South University Changsha China
4. Clinical Research Center for Respiratory Diseases in Hunan Province Changsha China
5. Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease Changsha China
6. Department of Respiratory Medicine the First People's Hospital of Changde City Changde China
7. National Clinical Research Center for Geriatric Disorders Xiangya Hospital, Central South University Changsha China
8. Department of Geriatric Medicine Xiangya Hospital, Central South University Changsha China