Additional file 4.

Real-time PCR quantification of TGFα and EGFR mRNA levels of control cells (shCtr and shNTC) and MMP-1 knockdown cells (sh1 and sh1a, sh1b) in BR3 and BR cells.

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Liu et al. BMC Cancer 2012 12:583   doi:10.1186/1471-2407-12-583