1. Department of Respiratory Medicine, Taizhou Fourth People's Hospital, Taizhou, Jiangsu 225300, P.R. China
2. Department of Traditional Chinese Medicine, Taizhou Fifth People's Hospital, Taizhou, Jiangsu 225766, P.R. China
3. School of Basic Medical Sciences, Guangxi University of Traditional Chinese Medicine, Nanning, Guangxi 530200, P.R. China
4. Department of Traditional Chinese Medicine, Guangxi Zhuang Autonomous Region People's Hospital, Nanning, Guangxi 530016, P.R. China