From: HER2 expression and relevant clinicopathological features in gastric and gastroesophageal junction adenocarcinoma in a Chinese population
FISH
IHC
Total
3+
2+
1+/0
Amplification
39 (97.5%)
11 (28.9%)
 3 (1.3%)
53
No amplification
 1(2.5%)
27 (71.1%)
227 (98.7%)
255
40
38
230
308