Cronin-Fenton D, Dalvi T, Hedgeman E, Norgaard M, Pedersen L, Mortensen K, Midta A, Shire N, Brody R, Fryzek J, Lawrence D, Rigas J, Potter D, Walker J, Mellemgaard A, Rasmussen TR, Hamilton-Dutoit S, Sorensen HT. An interim assessment of key biomarkers (programmed cell death receptor ligand 1 (PD-L1) expression and epidermal growth factor receptor (EGFR) in third-line therapy non-small cell lung cancer (NSCLC) patients: A Danish cohort study. Presented at the 41st European Society for Medical Oncology (ESMO) Congress, October 7-11 2016, Copenhagen, Denmark.