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Table 2 Correlation between HER2 overexpression and gene amplification in GC and GEJ adenocarcinoma

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
Total 40 38 230 308