Di Federico A, Alden SL, Smithy JW, et al. Intrapatient variation in PD-L1 expression and tumor mutational burden and the impact on outcomes to immune checkpoint inhibitor therapy in patients with non-small cell lung cancer. Annals of oncology : official journal of the European Society for Medical Oncology. 2024. doi:10.1016/j.annonc.2024.06.014