Three years later, his team finished an 18-year longitudinal study that showed that, if anything, such exposure was associated with slight beneficial effects, particularly for boys.
三年後，他的團隊完成了一個18年的長期研究，顯示如果有任何影響的話，這樣的暴露會關聯到輕微的有益影響，特別是對男孩子。