Outcomes of stage I non-small cell lung cancer patients treated with surgery versus radiation therapy within the NLST
1. To determine the differences in all-cause of mortality as well as cancer-specific mortality between patients with stage I disease treated with surgery versus radiation therapy. 
2. To determine the risk of second primary malignancy development following initial radical treatment of stage I lung cancer.
1. Dr. Omar Abdel-Rahman
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    Impact of current versus former smoking status on the outcomes of non-metastatic non-small cell lung cancer treated with upfront surgery; findings from the National Lung Screening Trial.
Abdel-Rahman O
Expert Rev Respir Med. 2019 Jun; Volume 13 (Issue 6): Pages 585-591 PUBMED