CD8A and breast cancer: Given the powerful capacity of multiplexing to reveal the spatial expression of several immuno-oncology markers, we aimed to describe the associations of T-cell, B-cell, histiocytic and programmed cell death phenotypic markers (CD3, CD8, CD20, CD68, Fox P3, PD-1 and PD-L1) using automated image analysis in a large, well-characterised breast cancer cohort (all subtypes), with long-term clinical follow-up (median 16 years).