LGR6 and ovarian cancer: To uncover the mechanism underlying the effect of LGR6 on chemoresistance in ovarian cancer, gene set enrichment analysis (GSEA: http://software.broadinstitute.org/gsea/index.jsp) of LGR6 expression against the oncogenic signatures collection of the MSigDB (http://software.broadinstitute.org/gsea/msigdb/index.jsp) was performed.