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Figure 3: Literature funnel mapping of publication bias. The heterogeneity is significant that there are 11 large studies out of 95 %CI. The asymmetry of funnel diagram may be also caused by heterogeneity. In addition, the empty of lower right corner of the funnel diagram suggests that the small sample study may not be of high quality and underestimate the actual cure rate of embolization

Figure 3: Literature funnel mapping of publication bias. The heterogeneity is significant that there are 11 large studies out of 95 %CI. The asymmetry of funnel diagram may be also caused by heterogeneity. In addition, the empty of lower right corner of the funnel diagram suggests that the small sample study may not be of high quality and underestimate the actual cure rate of embolization