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. 2015 Mar 29;6(16):14209–14219. doi: 10.18632/oncotarget.3694

Figure 1. Flowing chart of the enrollment.

Figure 1

Abbreviations: EGFR, epidermal growth factor receptor; EGFR-TKIs, EGFR-tyrosine kinase inhibitors; PD-L1, programmed cell death-ligand 1.