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Table 3 Correlation of chromogenic in situ hybridization and immunohistochemistry in archival breast tumor samples

From: Chromogenic in situ hybridization (CISH): a novel alternative in screening archival breast cancer tissue samples for HER-2/neu status

Chromogenic in situ hybridization Immunohistochemistry Total
  Negative (0 and 1+) Positive (2+ and 3+)  
No amplification 80 22 102
With amplification 0 58 58
Total 80 80 160