OBJECTIVE to probe into the effect of estrogen on bone microstructure and bone morphogenetic protein-4 mRNA expression and location during fracture healing.
目的：观察雌激素对骨折愈合过程超微结构变化和骨生长因子骨形态发生蛋白4基因表达及定位分布的影响。
OBJECTIVE to probe into the effect of estrogen on bone microstructure and bone morphogenetic protein-4 mRNA expression and location during fracture healing.
目的：观察雌激素对骨折愈合过程超微结构变化和骨生长因子骨形态发生蛋白4基因表达及定位分布的影响。
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