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Quantitative RT-PCR analysis of the mRNA expression levels of Topo IIα (A) and epidermal growth factor receptor (EGFR) (B) in the adrenal tumors from the transgenic mice. mRNA was purified from the adrenal tumors of transgenic mice aged 5–17 weeks and the adrenal glands of nontransgenic littermates aged 5 and 13 weeks. Each result represents the mean ± standard deviation (SD) (n = 3).
