Affiliation: | 1.Department of Cardiology, National Clinic Research Center for Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People’s Republic of China ;2.Department of Laboratory, National Clinic Research Center for Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People’s Republic of China ;3.Department of Respiratory, Clifford Hospital of Guangdong, Panyu, People’s Republic of China ;4.Department of Respiratory, National Clinic Research Center for Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, People’s Republic of China ; |