AUTHOR=Malapelle Umberto , Pallante Pierlorenzo TITLE=Editorial: Second Line Treatment of Non-Small Cell Lung Cancer: Clinical, Pathological and Molecular Aspects of Novel Promising Drugs JOURNAL=Frontiers in Medicine VOLUME=4 YEAR=2017 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2017.00063 DOI=10.3389/fmed.2017.00063 ISSN=2296-858X