One caveat: This study is based on medical records of Swedish men between 16 and 57 years, so the results cannot be attributed to other cultures, women or even other age groups.

这项研究的结论是基于瑞典16岁至57岁男性人群的医疗记录，因此研究结果并不一定适用于其它文化、性别或是年龄段的人群。

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U. S. estimates are based on education and medical records, not the more time-consuming survey conducted in South Korea.

美国的估计只是基于教育和医疗的记录，而非更费时费力地在韩国进行调查。

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In early May, the Journal of the American Medical Association published two studies. These were based on the records of several thousand patients.

早在今年五月，美国医生协会的定期刊物发表了两篇研究结果。这些都是来自于数千病人的记录。

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The Office of Inspector General's report was based on medical records from 190 patient visits to nursing homes in 42 states that lasted at least three weeks, which investigators said gave them a statistically valid sample of Medicare beneficiaries' experiences in skilled nursing facilities.

WSJ: Medicare paid $5.1B for poor nursing home care