Meta-Analysis of Preventive and Therapeutic Effects of Ligustrazine on Airway Remodeling in Asthmatic Rats

Figure 6

Funnel plot for data analysis of three indicators. (a) Funnel plot of airway smooth muscle thickness. (b) Funnel plot of gas tube wall thickness. (c) Funnel plot of eosinophils in the lung tissue.

(a)

(b)

(c)