1. Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China (mainland)
2. Department of Acupuncture and Moxibustion, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China (mainland)
3. Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China (mainland)