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https://biometry.nci.nih.gov/cdas/nlst/requests/instructions
https://biometry.nci.nih.gov/cdas/studies/nlst
> Non-image Data
Investigators with approved access to NLST data may acquire copies of data in two different ways:
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CT images: All CT images are available to investigators with approved access to NLST data and images. The chest X-rays are not available. Subsets of the CT images may be obtained in two ways:
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