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Evidence for Geographical and Racial Variation in Serum Sex Steroid Levels in Older Men

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Estrogen receptor-α and -β and aromatase knockout effects on lower limb muscle mass and contractile function in female mice

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Predictive accuracy and sources of variability in calculated free testosterone estimates

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Differential regulation of bone and body composition in male mice with combined inactivation of androgen and estrogen receptor-α

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