1– 3 1Department of Respiratory and Critical Care Medicine, The First People’s Hospital of Kashi Prefecture, Kashi, Xinjiang, People’s Republic of China; 2The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China; 3The Third Comprehensive Department, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, People’s Republic of China *These authors contributed equally to this work Correspondence: Dayong Zheng Department of Respiratory and Critical Care Medicine, The First People’s Hospital of Kashi Prefecture, 120 Yingbin Road, Kashi City, Xinjiang, 844000, People’s Republic of China Tel +13570029702 Ji-Qiang Li