这篇论文通过荟萃分析综合了十项关于睡眠质量的研究结果。

The paper used ___meta-analysis to combine findings from ten studies on sleep quality.

研究人员通过对50项临床试验进行荟萃分析，得出了更可靠的结论。

The researchers conducted a ___meta-analysis of 50 clinical trials to draw more reliable conclusions.