From: Epidermal Growth Factor Receptor (EGFR) gene copy number (GCN) correlates with clinical activity of irinotecan-cetuximab in K-RAS wild-type colorectal cancer: a fluorescence in situ (FISH) and chromogenic in situ hybridization (CISH) analysis
Case Number
EGFR FISH GCN ≥ 2.6
EGFR CISH GCN ≥ 2.12
3
2.6
2.12
10
2.9
2.13
13
1.48
2.09
19
2.78
20
3.03
4.03
22
2.7
3.18
26
2.43
29
2.83
5.15
31
3.85
2.96
35
1.92
2.63
37