1. Shanxi Academy of Traditional Chinese Medicine, Taiyuan, Shanxi Province, People’s Republic of China
2. Shanxi Provincial Hospital of Traditional Chinese Medicine, Taiyuan, Shanxi Province, People’s Republic of China
3. First Clinical Medical College, Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi Province, People’s Republic of China
4. Department of Respiratory Medicine, The Affiliated Hospital of Shanxi University of Traditional Chinese Medicine, Taiyuan, Shanxi Province, People’s Republic of China