Fig. 4From: The association between trimethylamine N-oxide levels and ischemic stroke occurrence: a meta-analysis and Mendelian randomization studyEvaluation of publication bias of included studies for meta-analysis. A Funnel plots of all included studies. B The results of Begg’s test and Egger’s test. C The plot of Begg’s test. D The plot of Egger’s testBack to article page