1. Department of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin 130021, P.R. China
2. Department of Acupuncture and Tuina, Changchun University of Chinese Medicine, Changchun, Jilin 130021, P.R. China
3. Department of Pediatrics, Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, Jilin 130021, P.R. China
4. Department of Respiratory Medicine, Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, Jilin 130021, P.R. China