设计：前瞻性群组研究。

DESIGN: Prospective cohort study.

youdao

在这组前瞻性群组研究中，我们检验CLL通常来自于MBL的假设。

In this prospective cohort study, we tested the hypothesis that CLL is always preceded by MBL.

youdao

此九项研究均为运用米非司酮和米索前列醇诱导药物流产的前瞻性群组研究。

All were prospective cohort studies that used mifepristone and misoprostol to induce abortion.

youdao

This particular study was a prospective cohort.

这个研究是前瞻性群组研究

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