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Table 3 Concordance in breast cancer biomarkers between the largest tumor (PT1) and second tumor (PT2) assessed with immunohistochemistry for patients with multiple ipsilateral primary breast cancer

From: Clinical evaluation of molecular surrogate subtypes in patients with ipsilateral multifocal primary breast cancer

  1. Data are presented as the number of specimens. ER Estrogen receptor, HER2 Human epidermal growth factor 2, PR Progesterone receptor, PT Primary tumor; p-value based on McNemar’s test; n.s = not significant (p-value > 0.05)