The job may require an individual who understands the meaning of interim analyses, multiplicity, cross-over, non inferiority, covariate and subpopulations.
这项工作可能需要一个人谁明白，多重，交叉，协变量和亚群分析的意义。
Objective To study the effect of covariate imbalance on analysis of covariance.
目的探讨协变量的不均衡对协方差分析的影响。
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