1. Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
2. Department of Respiratory and Critical Care Medicine, Chengdu First People’s Hospital, Chengdu, China
3. Department of Radiology, Chengdu First People’s Hospital, Chengdu, China
4. School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
5. Department of Cardiothoracic Surgery, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China