1. College of Traditional Chinese Medicine, Anhui University of Chinese Medicine, Hefei, Anhui 230012, P.R. China
2. Department of Respiratory Medicine, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui 230012, P.R. China
3. Anhui Provincial Key Laboratory for the Application and Transformation of Traditional Chinese Medicine in the Prevention and Treatment of Major Respiratory Diseases, Hefei, Anhui 230012, P.R. China