Fig. 1From: Gene expression profiling leads to discovery of correlation of matrix metalloproteinase 11 and heparanase 2 in breast cancer progressionSchematic representation of the breast cancer gene expression profiling study. A total number of 150 tissue samples were examined. After RNA extraction and purification, 32 RNA samples were selected as the training set for microarray gene expression profiling. The remaining 118 samples were used as a testing set to validate the gene expression results by real-time RT-qPCRBack to article page