Methods: 112 cases of type 2 diabetic nephropathy were divided into two groups, involved in a randomized control clinical trial.
方法：112例2型糖尿病性肾病患者随机分为①对照组：仅用包括降糖疗法的一般糖尿病性肾病治疗方法；
Methods the effect of rifaximin for the treatment of acute bacterial diarrhea was investigated in a multi center randomized, single blind and clinical trial with control of ciprofloxacin.
方法采用多中心、随机、单盲对照试验，以国产环丙沙星作对照，研究利福昔明治疗细菌感染性腹泻的效果。
Methods: a clinical trial by randomized, double-blind, parallel control was conducted. The control drug was imported cefmetazole.
方法：采用双盲、随机、平行对照试验设计，以进口头孢美唑钠为对照药物。
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