Serum concentrations of LH, FSH, estradiol and testosterone in healthy infants / 中华内分泌代谢杂志

ABSTRACT

0.05). Conclusion Peaks of serum gonadotropin and sex hormone concentrations are reached at 2~4 months of age and sexual dimorphism is shown, suggesting that in boy and girl infants, different mechanisms may be involved in regulating the development of gonads.