Pembrolizumab versus chemotherapy for previously untreated, PD-L1-expressing, locally advanced or metastatic non-small-cell lung cancer (KEYNOTE-042): a randomised, open-label … TSK Mok, YL Wu, I Kudaba, DM Kowalski, BC Cho, HZ Turna, G Castro, ... The Lancet 393 (10183), 1819-1830, 2019 | 3283 | 2019 |