... Cluster Sampling 整群抽样 Cohort Design 类似群体设计 Control Variable 控制变量 ...
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case-cohort design 队列设计
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Design: This was a matched retrospective cohort study.
设计：这是一项配对回顾性队列研究。
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Study Design. Prospective cohort study.
前瞻性的队列研究。
Study Design. A retrospective matched cohort study with control group.
研究设计：对照配对回顾性队列研究。
The strengths of the Swedish study reviewed here include the large population based prospective cohort design along with the long period of follow up to validate the composition of the kidney stones.
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