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B7 homolog 3 (B7‐H3) protein expression scores are illustrated in pretreatment and posttreatment samples from a clinical trial of intense neoadjuvant hormonal therapy. (A) Representative pretreatment and posttreatment samples of B7‐H3 immunostaining are shown. Tumor cells are delineated from stroma by the automated cell phenotyping algorithm (red lines; original magnification ×100). (B) B7‐H3 immunostaining quantification is illustrated in pretreatment and posttreatment samples.
