英译汉一句Because these reactions are reported voluntarily from a treatment population of unknown size ,it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure

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英译汉一句Because these reactions are reported voluntarily from a treatment population of unknown size ,it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure
英译汉一句
Because these reactions are reported voluntarily from a treatment population of unknown size ,it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure

英译汉一句Because these reactions are reported voluntarily from a treatment population of unknown size ,it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure
因为这些反应是由接受治疗的人群(具体数量不得而知)通过个人感受而得出的报告,因此要准确预计他们的频率或建立药物暴露后的因果关系的资料几乎是不可能的.
仅供参考

因为这些反应是报道的人口从治疗自愿未知的大小,不可能对建立或者频率能够可靠估计因果关系药物暴露

因为这些反应是报道的人口从治疗自愿未知的大小,不可能对建立或者频率能够可靠估计因果关系药物暴露

由于这些反应是自动根据来自一个未知数目大小的治疗人口,它不可能总是可靠地估算它们的发生频率或者由此建立一个因果关系来揭示药效