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A. Plasma concentrations of estradiol according to quartile of anastrozole concentration in breast cancer patients before and after treatment with one mg/day oral dose of anastrozole. Key for line color in A: black, lowest quartile; red, second quartile; yellow, third quartile; green highest quartile. B. Plasma concentrations of estradiol in breast cancer patients before (pre) and while on treatment (post) with one mg/day oral dose of anastrozole.
