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Plasma cortisol (A) and leptin (B–D) responses to a single dose (2 mg) of dexamethasone in African-American and European-American men and women. Abbreviations: WF, white female; WM, white male; BF, black female; BM, black male (*P = 0.004, **P = 0.0036, ***P = 0.0024, and ****P < 0.0001).
