First, this research is a systematic review and meta-analysis, which is a type of study that looks into the data of multiple others studies in order to come to a more robust conclusion.

首先，这项研究是一项系统综述和荟萃分析，这是一种研究类型，它需要研究多项其他实验的数据，为的是得出更可靠的结论。

Academics in other fields regularly perform systematic policy reviews, in which a wide range of evidence is collected and analysed in a transparent and reproducible way.

其他领域的学者定期进行系统的政策审查，以透明和可重复的方式收集和分析广泛的证据。