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Table 1 Comparison of diagnostic value between IHC and well-based RPPA

From: HER-2 assessment in formalin-fixed paraffin-embedded breast cancer tissue by well-based reverse phase protein array

  Sensitivity (%) Specificity (%) PPV (%) NPV (%)
IHC 100 84.2 86.4 100
Well-based RPPA 92.1 94.7 94.6 92.3
  1. Abbreviations: IHC, immunohistochemistry; Well-based RPPA, well-based reverse phase protein array; PPV, positive predictive value; NPV, negative predictive value.