NASA's decision to bring the crew home one month early, on Jan. 15, marked the agency's first controlled medical evacuation from the station in its 25 years of continuous operations. The incident highlighted the limits of treating complex health problems 250 miles away from Earth.
Resident doctors represent nearly half the medical workforce and range from doctors fresh out of university through to those with up to a decade of experience.
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Afghanistan launches border offensive against Pakistan，推荐阅读爱思助手下载最新版本获取更多信息
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