Copd_a_207855 1933..1941

Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China, Chengdu 610041, People’s Republic of China; Department of Internal Medicine, Sichuan Provincial People’s Hospital and Sichuan Academy of Medical Science, Chengdu 610072, People’s Republic of China; Department of Laboratorial Medicine, West China Hospital of Sichuan University, Chengdu 610041, People’s Republic of China; Department of Respiratory and Critical Care Medicine, The 3rd People’s Hospital of Chengdu, Chengdu 610031, People’s Republic of China; Department of Respiratory and Critical Care Medicine, 416 Hospital, Chengdu 610051, People’s Republic of China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Chengdu University, Chengdu 610081, People’s Republic of China