Method: Random and single blind design was used to divide 160 patients with acute cerebral infarction into the treatment group (80 cases) and the control group (80 cases).
方法：采用随机单盲设计，将160例急性脑梗塞患者随机分为治疗组和对照组各80例。
The result showed that under this situation, the group balanced block design was better than the random complete block design.
结果证实，在这种情况下组平衡区组设计优于随机区组设计。
The study employed a quasi-experimental design of a non-random posttest control group;
本研究使用了一个定向控制的类似实验的设计来进行。
The study employed a quasi-experimental design of a non-random posttest control group;
本研究使用了一个定向控制的类似实验的设计来进行。
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