1420TiP A phase I/II trial of radium-223 (Ra-223) in combination with pembrolizumab in patients (pts) with stage IV non-small cell lung cancer (NSCLC). - Reck, M.; Mileham, K.F.; Clump, D.A.; Decoster, L.; Estival, A.; Felip, E.; Fried, P.; Paz-Ares, L.; Sebastian, M.; Segarra, N. Vinolas; Surmont, V.; Wagner, A.; et al. (Annals of Oncology, 2020)