They were randomly selected from participants in a separate nationwide health survey.

他们是从全国健康调查中随机选择出来的.

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The researchers studied a health survey completed by 3,193 employees ofa large multinational pharmaceutical company.

研究人员分析了一家大型跨国医药公司的3193名员工的健康数据.

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The researchers studied a health survey completed by 3,193 employees of a large multinational pharmaceutical company.

研究人员分析了一家大型跨国医药公司的3193名员工的健康调查.

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