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. 2013 Aug 22;8(8):e74618. doi: 10.1371/journal.pone.0074618

Figure 1. HER2 tumour levels and classification of HER2 amplified and non-amplified cancers.

Figure 1

A) Relative mRNA expression levels of HER2 in estrogen receptor positive (ER+; black bars) and ER negative (- ; white bars with asterisk) breast tumours from pre- and postmenopausal women. Tumours identified to be HER2 non-amplified (NA) and amplified (A) by MPLA are indicated. B) Relative HER4 levels in HER2 NA and A tumours. Significant difference between A and NA tumours is presented using the Mann-Whitney U test.