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 the study, published in the New England Journal of Medicine, researchers at Boeing commercial Airplanes simulated conditions on board a 20-hour commercial flight in a group of about 500 volunteers.

这项研究刊登在新英格兰医学杂志上，研究者模拟波音商用飞机条件让一组500名志愿者进行20小时的商业飞行。

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Duties: To certify, survey & inspect operators and airman engaged in civil aviation activities in the field of flight operation and civil aviation medicine; to handle the relevant illegal acts.

基本职责： 对从事民用航空活动的单位或个人，在飞行运行和航空卫生方面实施审定、监督、检查；查处相关的违法行为。

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One mother of two who did not wish to be identified used the over-the-counter allergy and motion-sickness medicine Phenergan for a recent flight from Australia to the US. She said the first eight hours of the flight were "agony" and that she used the medication as a last resort to help her three-year-old daughter sleep.

BBC: Should parents drug babies on long flights?

He helps staff the University of Pittsburgh School of Medicine's center that provides 24-hour consultations for in-flight emergencies for the airlines studied and that fields an average of one call per hour.

WSJ: The Flight Status of Passenger Ailments