这项研究叫国家肺癌筛查试验，由美国放射影像网络学院和美国癌症研究共同主持。
The study, called the National Lung Screening Trial, was conducted by the American College of Radiology Imaging Network and the cancer institute.
这项研究叫国家肺癌筛查试验，由美国放射影像网络学院和美国癌症研究共同主持。
The study, called the National Lung Screening Trial, was conducted by the American College of Radiology Imaging Network and the cancer institute.
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