The Data Availability statement is being updated with a new data location. The updated and correct statement is: Quantitative features data for Cohort 1 has been added to Suppl. materials. Cohort 1 deidentified image data will be available via TCIA, upon publication. The dataset can be found at: https://public.cancerimagingarchive.net/ncia/login.jsf Using Search, under Collection(s), the dataset is available as LungCT-Diagnosis, and the DOI is https://doi.org/10.7937/K9/TCIA.2015.A6V7JIWX. Patient scan and clinical data for Cohort 2 is de-identified and can be made available upon request. Please contact Olya.Grove@moffitt.org, to establish a data transfer protocol, for images.