该试验的局限是，这不是原创的试验，而是一个亚组分析。

The limitation is this is not the original trial, this is a subgroup analysis.

youdao

该试验的局限是，这不是原创的试验，而是一个亚组分析。

The limitation is this is not the original trial, this is a subgroup analysis.

youdao