方法：采用数字表随机分组，将护生分为试验组和对照组。
Methods: The students were randomly divided into the experiment group and the control group.
方法：将204例高血压合并阵发性心房颤动病人用随机数字表法分为试验组与对照组。
Methods: a total of 204 patients with hypertension and paroxysmal atrial fibrillation were randomly divided into test and control groups by digit table.
方法：将81例过敏性紫癜患者按随机数字表法分为两组，试验组45例，对照组36例。
Methods: 81 HSP patients were divided into experiment group and control group randomly in which 45 patients in the experiment group while 36 in another.
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