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Table 1 Mono color SISH versus dual color SISH.

From: Determining sensitivity and specificity of HER2 testing in breast cancer using a tissue micro-array approach

Dual color SISH
   Non-Amplified (ratio < 1,8) Equivocal (1,8 < ratio < 2,2) Amplified (ratio > 2,2)
Mono color SISH Non-Amplified (< 6 copy numbers) 841 24 7
  Amplified (> 6 copy numbers) 0 2 88
  1. SISH, silver in situ hydridization.