Genomic and Clinical Characteristics of Study Cohort Are Generalizable Tumor Mutation Burden Is Significantly Associated with Improved Efficacy of Combination Immunotherapy Individual Genes and Additional Molecular Features Associated with Response or Resistance to Combination Immunotherapy Tumor Mutation Burden Is Independent of PD-L1 and Remains Significantly Associated with Efficacy in Multivariable Analysis In patients with advanced cancers treated with PD-1 blockade monotherapy, multiple...