Abstract

Copyright: © 2015 Zarogoulidis K . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Nowadays, expansion of the aging population, especially in developed countries, elderly lung cancer cases show an increasing trend. Surveillance Epidemiology and End Results (SEER) program data show that patients ≥ 70 years and older account for 47% of all lung cancer [1]. According to National Institute on Aging (NIA) and NCI SEER Collaborative Study on Comorbidity and Cancer in the Elderly, in the USA in 2030, 1 in 5 Americans will be aged ≥ 65 years [1].

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