A toolbox for meta-analysis. This package includes (1) a robust multivariate meta-analysis of continuous or binary outcomes; (2) a bivariate Egger's test for detecting small study effects; (3) Galaxy Plot: A New Visualization Tool of Bivariate Meta-Analysis Studies; and (4) a bivariate T&F method accounting for publication bias in bivariate meta-analysis, based on symmetry of the galaxy plot.