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Average relative expression of CYP4B1 is significantly decreased in adrenocortical tumors relative to normal adrenal tissue. Mean mRNA expression in normal samples (n = 10) is normalized to 1 and relative expression in AC As (n =10) and ACCs (n =10) are shown. Statistical significance was calculated using 2-tailed t test and P value < .01 was considered significant. Error bars, SEM. (* = P value < .01)
