“structural and sampling zero count”的概念、定义、翻译、参考文献-科学参考

单词	structural and sampling zero count
释义	structural and sampling zero count Encyclopedia 理学临床试验的自适应性设计释 structural and sampling zero count结构性与抽样性零计数在列联表模型中出现的零计数，来自本身的结构或于抽样。
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