A study published in the New England Journal of Medicine estimated that there are an average of 30 in-flight medical emergencies on U.S. flights every day.

发表在《新英格兰医学杂志》上的一项研究估计，美国航班上每天平均会发生30起飞行中医疗紧急事件。

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In a study of the effects of exercise on longevity, medical researchers tracked 500 middle-aged men over a 20-year period.

在一项有关运动对长寿的影响的研究中，医疗研究人员在为期20年的时间中跟踪调查了500名中年男性。

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The study showed that green tea improves blood flow and the ability of arteries to relax, said Charalambos Vlachopoulos, a cardiologist at the Athens Medical School in Greece who worked on the study.

从事该研究的希腊雅典医学院心脏病学家卡拉兰波斯•维拉科珀罗斯说，研究发现绿茶能够促进血液流动，并能增强动脉疏通能力。

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Kristine Funk's study on Web-based weight loss management is published in the Journal of Medical Internet Research.

VOA: standard.2010.07.30

Last week's study on placebos published in the British Medical Journal has sparked debate: What precisely is a placebo, and might you, the patient, actually in some cases benefit from one?

CNN: Is your doctor prescribing a placebo?

As a result of a number of new medications with unique formulations, the potential for developing a toxic effect when taken with grapefruit juice appears to be on the rise, according to a new study in the Canadian Medical Association Journal.

FORBES: Caution When Taking Grapefruit Juice with Certain Medications

"This gap needs to be closed, " said Dr. Shahrokh Shariat from Weill Cornell Medical College in New York, who worked on the study.

MSN: Men who have cancer more likely to die from it, study finds