Their data came from the National Health and Nutrition ExaminationSurvey, which followed 12,000 American men and women over the course of six years.
刊登在美国全国健康与营养调查(National Health and Nutrition Examination Survey)的数据，是长达六年时间跟踪调查12.000美国男人和妇女所取得的。
2
Their data came from the National Health and Nutrition ExaminationSurvey, which followed 12, 000 American men and women over the course of six years.
他们的数据来自于美国国家健康与营养检验调查(National Health and Nutrition Examination Survey)，该调查对1万2千男女进行了6年的追踪。
3
A 2009 study by Canadian researchers, asked this important question using prospective data on 6,011 men and women from the Third National Health and Nutrition ExaminationSurvey.