It is grouped with the world's most lethal potential biological weapons agents, sharing "select agent" status with the pathogens that cause smallpox, anthrax and plague.

它被归类于世界上最致命的药剂，可作为生物武器使用。并和能够导致天花、炭疽病和瘟疫的病毒同属“管制品”。

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The potential risk factors can be grouped into the following subsets.

潜在危险因素可被分成下列几组。

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To explore the potential impact of trial design, we pre-planned analyses that grouped trials by important aspects of their design that might influence the treatment effect.

为了研究试验设计的潜在影响，我们事先计划了特殊的分析法，将试验依可能影响治疗结果的设计面向加以分组。

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