We studied deaths due to cancer during and after randomised trials of daily aspirin versus control done originally for prevention of vascular events.
我们通过随机对照试验，对起初用阿司匹林预防血管事件的人群进行分析，观察他们因癌症而造成死亡的情况。
We included randomised trials of mite control measures versus placebo or no treatment in people with asthma known to be sensitive to house dust mites.
对已知的对屋内尘（虫满）过敏的气喘病患采取尘（虫满）控制监测或安慰剂治疗或不治疗的随机试验，。
We included randomised trials of mite control measures versus placebo or no treatment in people with asthma known to be sensitive to house dust mites.
对已知的对屋内尘（虫满）过敏的气喘病患采取尘（虫满）控制监测或安慰剂治疗或不治疗的随机试验，。
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