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. Author manuscript; available in PMC: 2011 Jun 27.
Published in final edited form as: Breast Cancer Res Treat. 2010 Sep 15;125(3):879–883. doi: 10.1007/s10549-010-1159-6

Figure 2. Hierarchical clustering of 60 breast cancer samples and 12 replicates.

Figure 2

Euclidean distance (vertical scale) and Ward agglomeration were used. Two principal clades were generated, resolving the sample set into ER+ (38/40, 95%) and ER-(18/20, 90%) branches with high specificity. As discussed in the text, the discordant samples 32 and 06 (*) have the lowest ER scores by immunohistochemistry.