Such studies should consider the relative needle size and include sham control groups to account for the potential effects of the needle injection.

这样些研究应该考虑到比较针头大小以及包括假控制组对针头注射潜在疗效的解释。

youdao

The flow recovery time, the creatinine level and pathological changes were compared with that before operation, in sham operation group, control group and experiment group.

比较假手术组、对照组和实验组的肾脏血供恢复时间、血肌酐变化情况以及肾脏病理形态的改变。

youdao

Methods 30 Chinese mini-swine were randomly into live groups: model control group, small -, middle -, large-dose group and sham operation group (6 each).

方法中华小型猪30只，随机分成模型对照组，通心络治疗小、中、大剂量组和假手术组，每组6只。

youdao

While the participants were doing this task, the scientists either disrupted their left prefrontal cortex with tDCS or used a sham control procedure.

WSJ: Mind & Matter: Alison Gopnik on Beating the Brain's Curbs on Innovation