Small cell transformation in EGFR-mutated non-small cell lung cancer: DLL3 expression and efficacy of immune checkpoint inhibitors or tyrosine kinase inhibitors combined with chemotherapy - Saalfeld, Felix; Möller, Johanna; Christopoulos, Petros; Wenzel, Carina; Rasokat, Anna; Wang, Xuejun Alice; Ioannis Vathiotis, Ioannis; König, David; Illini, Oliver; Grohé, Christian; Wiesweg, Marcel; Wesseler, Claas; et al. (European journal of cancer, 2024)