维尼沃夫医生说，调查者发现，屋内和车内严格的禁烟令与二手烟影响儿童健康这一认知密不可分。

The belief that second-hand smoke harms children’s health was not independently associated with strict smoking bans in homes and cars, the researchers found.

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俄亥俄哥伦布县一所高中的同-异性恋联合俱乐部指导教师杰夫·格雷斯说，他发现过去十年里学生的认知已经发生了变化。

Jeff Grace, faculty adviser for a gay-straight alliance club at high school in Columbus, Ohio, said he has seen student perceptions change over the last decade.

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“当你着眼于认知和生理方面的数据时，会发现他们还不足以解释这个不同，”塞西(Ceci)说。

"When you look at the cognitive and biological data, they're not enough to explain the difference," says Ceci.

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