Extended Data Table 3 Biopsy sites. Biopsies used in the analysis of Tumor Inflammation Signature (TIS), programmed death-ligand 1 (PD-L1) expression and tumor-infiltrating lymphocytes (TIL), sorted by organ / tissue biopsied

From: Atezolizumab plus anthracycline-based chemotherapy in metastatic triple-negative breast cancer: the randomized, double-blind phase 2b ALICE trial