The researchers said that they are still unclear why that may be the case.

研究人员表示，他们还不清楚为什么会有这种情况。

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The researchers said that only 2 of 63 healthy subjects would be expected to have such abnormalities.

研究人员称，63名健康受试者中，只有两个人有可能会有这种异常现象。

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Reporting in the journal Science, the researchers said that around half of Europeans had one offending copy.

在《科学》杂志上，研究人员称，大约半数欧洲人携带一个拷贝。

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Researchers for the RAND Corporation and the University of California at Los Angeles have said that few medical errors cause injury.

VOA: special.2010.07.13

Mister Chu said researchers at the Lawrence Berkeley National Laboratory in California estimated the effects that white roofs could have on the planet.

VOA: special.2009.06.19

The researchers said that while figures from the 1950s are not directly comparable they were higher.

BBC: 'No sex please, we're too busy'

The researchers said that the technique did not appear to have any negative effects.

BBC: Clue to treating nerve pain

The researchers said that rabies was more likely after the bite of a stray or rabid dog.

BBC: NEWS | Health | Rabies warning over minor bites