Methods: 100 cases of CRF were randomly divided into treatment group and control, with 50 cases in each group.
方法：将符合诊断标准的CRF患者100例，随机分成两组，治疗组和对照组各50例。
Methods intravenous isosorbide mononitrate injection headache in patients with coronary heart disease, 70 cases were randomly divided into treatment group and control group of 35 patients.
选择静脉滴注单硝酸异山梨酯注射液发生头痛的冠心病患者70例，随机分为治疗组和对照组各35例。
Method: 37 cases of FGR were enrolled in treatment group and 22 cases of FGR were put into control group.
方法治疗组37例，对照组22例，测定治疗前后的宫高、腹围、胎儿双顶径，以及出生后的新生儿体重及胎盘重量。
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