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Table 2 Inter-laboratory correlation between 'own CISH' and 'outside CISH'

From: Chromogenic in situ hybridisation for the assessment of HER2 status in breast cancer: an international validation ring study

 

Outside CISH (number of signals)

 

Own CISH (number of signals)

<5

5

6

>6

No signal

n

<5

94

2

1

3

1

101

5

0

1

0

2

1

4

6

3

3

0

3

0

9

>6

4

3

7

78

0

92

No signal

0

0

0

1

1

2

Total

101

9

6

87

3

208

  1. CISH, chromogenic in situ hybridisation.