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Forest plots of comparison of the incidence of ischemic stroke between cilostazol and aspirin groups in prevention and cure of ischemic stroke. Heterogeneity test, chi-square statistic with degrees of freedom and P value; inconsistency among results, I2 test for overall effect, Z statistic with P. CI, confidence interval; df, degrees of freedom; M-H, Mantel-Haenszel method.
