Van Bockstal MR, Cooks M, Nederlof I, Brinkhuis M, Dutman A, Koopmans M, Kooreman L, van der Vegt B, Verhoog L, Vreuls C, Westenend P, Kok M, van Diest PJ, Nauwelaers I, Laudus N, Denkert C, Rimm D, Siziopikou KP, Ely S, Zardavas D, Roberts M, Floris G, Hartman J, Acs B, Peeters D, Bartlett JMS, Dequeker E, Salgado R, Giudici F, Michiels S, Horlings H, van Deurzen CHM. Interobserver Agreement of PD-L1/SP142 Immunohistochemistry and Tumor-Infiltrating Lymphocytes (TILs) in Distant Metastases of Triple-Negative Breast Cancer: A Proof-of-Concept Study. A Report on Behalf of the International Immuno-Oncology Biomarker Working Group. Cancers 2021, 13: 4910. PMID: 34638394, PMCID: PMC8507620, DOI: 10.3390/cancers13194910.Peer-Reviewed Original Research