Affiliation: | 1.Department of Respiratory, Tianjin Medical University General Hospital, 54 Anshan Road, Heping District, Tianjin, Tianjin, 300052, China ;2.Department of Respiratory, People’s Hospital of Qitaihe City, 37 Shanhu Road, Qitaihe, Heilongjiang, 154600, China ;3.School of Public Health, North China University of Science and Technology, 57 Jianshe Road, Tangshan, Hebei, 063000, China ;4.Tianjin Haihe Hospital, Tianjin Institute of Respiratory Diseases, Tianjin, Tianjin, 300350, China ;5.Tianjin Center for Disease Control and Prevention, 6 Huayue Road, Tianjin, Tianjin, 300011, China ;6.Department of Thoracic Surgery, Tianjin Union Medical Center, 190 Jieyuan Road, Hongqiao District, Tianjin, Tianjin, 300121, China ; |