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Flowchart of the experiment. OP osteoporosis, SA sarcopenia, GSE gene expression composite series, LIMMA linear modelling of microarray data, WGCNA weighted gene co-expression network analysis, DEGs differentially expressed genes, LASSO least absolute shrinkage and selection operator, SVM-RFE support vector machine-recursive feature elimination, GSEA gene set enrichment analysis, RT-PCR real-time polymerase chain reaction.
