Bias may arise because large random fluctuations of the estimated treatment effect can occur, particularly early in the progress of a trial.
治疗效应可能会出现较大的随机波动从而导致偏倚的产生，特别是在试验的早期。
Trials eligible for inclusion are classified according to the reader's degree of certainty that random allocation was used to form the comparison groups in the trial.
对于使用随机分配设立对照组的入选试验，其具体分类取决于读者对试验报告的把握。
Methods The clinical pathway developed in urban hospital was evaluated by non-random concurrent controlled trial and individual depth interview.
方法采用同期非随机对照试验和个人深入访谈法， 对所建立的专科诊疗路径进行评价研究。
Patients treated with metoprolol also showed a significant trend for an increase in random blood glucose levels over the course of the trial, the investigators write.
作者这样写道，服用美托洛尔患者也表现出了随机血糖水平的明显增长趋势，并且高于试验水平。
The evidences of EBM are provided by random controlled trial (RCT), and it is not perfect for clinical use.
循证医学遵循的证据来自随机对照试验，这些证据并非完美。
Trial sequential analyses were conducted to minimise the risk of random errors.
执行试验后续分析以最小化随机错误风险。
METHODS: Taking commercial Yaotongning as control drug, we performed a random clinical trial in 21 pairs of patient .
方法：以市售药品腰痛宁胶囊为对照，进行随机对照临床试验（共21对患者）。
The trial slip surfaces are verified frequently by the random walking method and gradually tend to the critical slip surface.
利用随机走步法不断更新试算滑动面，使其安全系数不断减小。
Methods A total of 106 DCM patients with heart failure were allotted into trial group and control group at random.
方法将106例患者随机分为两组，在常规抗心力衰竭基础上，渝疗组加用二丁酰环磷腺苷钙静脉给药；
MethodsThe research is prospective study, semi-random control trial was conducted.
研究方法本研究为前瞻性研究，采用半随机对照法。
MethodsThe research is prospective study, semi-random control trial was conducted.
研究方法本研究为前瞻性研究，采用半随机对照法。
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