miR-200b as a prognostic factor in breast cancer patients. (A) The ISH staining of miR-200b in breast cancer tissue microarray: ×200. Two miR-200b high samples and two miR-200b low samples were shown as representatives. (B) qRT-PCR results for miR-200b detection in three miR-200b high ISH staining samples and three miR-200b low samples. (C) Survival curves of OS and DFS according to miR-200b expression. Low miR-200b expression correlated with worse outcome.