And that legal distinction between the definition of a "toy" and of other "children's products" seems to be the complicating factor in the effort to regulate children's exposure to dangerous items.

“玩具”和“儿童产品”的定义在法律上的区分，似乎给管制儿童接触危险物品的努力增添了复杂的因素。

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While asbestos exposure is a causative factor for both disorders, it is the only known cause of mesothelioma while lung cancer can be caused by other agents-including cigarette smoking.

尽管石棉暴露是两个紊乱的病因因素，它是间皮瘤的仅有的知道的原因而肺癌也可被其它媒介包括吸烟引起。

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Among men, exposure to this neglected risk factor nearly doubles the risk of chronic respiratory disease.

在男子中，暴露于这一被忽视的危险因素使患慢性呼吸道疾病的危险几乎增加1倍。

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One common factor is that each of them has high European exposure.

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"Based on what we know thus far, I think we have to assume that the No.1 risk factor we have is the degree or extent of exposure, " Bailes said.

CNN: STORY HIGHLIGHTS

Their study of more than 7, 000 people suggests exposure to bleach and other chemicals is a factor in one in six cases of adult-onset asthma among British people in their mid-50s .

BBC: Cleaning products 'linked to adult asthma'