Study Design. A prospective study.
研究设计:前瞻性研究。
To our knowledge, only a recent population-based prospective study conducted in Italy investigated the issue.
就我们所知,意大利只是最近有一个基于人群的前瞻性研究涉及这个问题。
The next step is to design a prospective study so that we can see if these observed differences are actually real.
下一步需要设计一项前瞻性调查,这样我们就能知道是否真的存在这些观测到的差异。
This particular study was a prospective cohort.
这个研究是前瞻性群组研究
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