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Cluster analysis of gene expression: Gene expression data obtained with Affymetrix arrays from CAF and NF isolated from all six cases (BCa 1, 2, 5, 6, 7, 8) were subjected to unsupervised cluster analysis. Also included were results from a human mammary fibroblast cell line (HMF) grown in 3D co-culture with S1 normal mammary epithelial cells or with malignant T4-2 cells.
