Targeted Therapy for Mutation-Driven Metastatic Non–Small-Cell Lung Cancer: Considerations for ALK-Rearranged TumorsByKathryn F. Mileham, MD, FACP,Mufti N. Ahmad, MD, FACP,Edward S. Kim, MD, FACPApril 15th 2019In this article, important concepts in the molecular testing of non–small-cell lung cancer are highlighted.