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Forest plot for miRNA expression and prognosis of osteosarcoma, stratified by analysis method. (A) Low-expression miRNAs correlated with poor prognosis in osteosarcoma, stratified by analysis method (M and U). (B) High-expression miRNAs with poor prognosis in osteosarcoma, stratified by analysis method (M and U). The p-values for heterogeneity of HR by subgroup, and overall, are shown. M, Multivariate analysis; U, Univariate analysis.
