As toxicologists , we have expertise on nanotechnology 's potential impact on human health .
作为毒理专家，我们有专业知识，了解纳米技术对人类健康的潜在影响。
European association of poisons centres and clinical toxicologists .
欧洲毒物控制中心和临床毒理学协会。
And some toxicologists used similar exclusionary reasoning to say no known drug or chemical could be responsible , so the cause must be an infectious agent .
