Figure 1From: Comparison of gene expression profiles in core biopsies and corresponding surgical breast cancer samplesUnsupervised hierarchical clustering of paired core biopsy and surgical tumor tissue samples (Spearman correlation, average linkage). Red color indicates high expression levels (low ΔCt) and green vice versa. Patients 6, 11 and 20 had two core biopsies taken that were analyzed separately. In four cases the paired gene expression profiles did not cluster together close to each other.Back to article page