"The NLST cannot answer all of the important questions about screening that will be important for implementation," Aberle said.
NLST并不能回答所有有关影像学的重要问题，这有待进一步的研究。
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These specimens will provide a rich resource to validate molecular markers that may compliment imaging to detect early lung cancer, Aberle said.
这些标本可以为与肺癌早期诊断有关的分子标记研究提供丰富的资料。Aberle说。
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"These abnormal findings usually require some form of additional diagnostic evaluation, including invasive procedures that carry their own risks," Aberle said.