In our statistics process the number of samples is N=736, the reason being some of the papers didn't have a clear source of case.
由于样本中有的研究论文并没有明显的案例来源地，因此此处统计所得的样本数N=736。
The trabecular number(Tb. N)and degree of anisotropy(DA)of the scaffolds were more than those of the bone samples(P< 0.05).
支架的小梁数目和各项异性程度高于松质骨样本（P<0.05）；
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