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Table 2 Correlation of EGFR gene amplification and protein expression

From: Epidermal growth factor receptor in breast carcinoma: association between gene copy number and mutations

Expression Amplification P value
  Positive Negative  
Positive 15/32.6 10/10.8 0.002$
Negative 31/67.4 83/89.2  
  1. $ P values (two-sided) calculated using Pearson's chi-square test.