Relationship between Tumor Mutational Burden, PD-L1, Patient Characteristics, and Response to Immune Checkpoint Inhibitors in Head and Neck Squamous Cell Carcinoma. - Burcher, Kimberly M.; Lantz, Jeffrey W.; Gavrila, Elena; Abreu, Arianne; Burcher, Jack T.; Faucheux, Andrew T.; Xie, Amy; Jackson, Clayton; Song, Alexander H.; Hughes, Ryan T.; Lycan Jr., Thomas; Bunch, Paul M.; et al. (Cancers, 2021)