Research Article

Spectrum-Effect Relationships of Flavonoids in Glycyrrhiza uralensis Fisch.

Figure 6

Results of SO2-induced cough in Glycyrrhiza uralensis Fisch. flavonoids from 21 producing areas. The result represents mean ± S.D. Note. Compared with the normal group, is a very significant difference. Compared with the model group, was considered to be significant; , and there was a significant difference (n = 10).