Of 148 countries (28%) that provided data on screening for transfusion-transmissible infections, 41 were not able to screen the donated blood for one or more of the markers.

在就筛检可通过输血传播的感染提供数据的148个国家中，有41个(28%)未能对捐献的血液筛检一项或多项标志物。

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New clinical trials were completed, as were analyses of other sorts of medical data. Researchers studied the risks and costs of screening more rigorously than ever before.

与其他类型的诊断方法对比的最新临床试验已经完成，研究结果显示，癌症筛检的风险和成本比任何传统诊断手段都要高。

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More studies based on the NLST data set are ongoing, and will include reports on the cost effectiveness of spiral ct and the effects of the screening process on smoking behaviors over time.

还有很多基于NLST的数据的研究正在进行，包括有关螺旋ct的成本效用的研究，以及成像过程对长期吸烟习惯的影响的研究。

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If NSI can obtain all the data on the screening programs, particularly data from easily manipulated lung-function tests, Brickman said, it might be able to prove a coordinated scheme to extract fraudulent settlements.

FORBES: Magazine Article

The screening works by analysing data gleaned from the exam boards' online marking system.

BBC: New weapon in war against exam cheats

The importance of screening is borne out by the state data in the new study, says D.

CNN: STORY HIGHLIGHTS