From: Very low prevalence of epidermal growth factor receptor (EGFR) protein expression and gene amplification in Saudi breast cancer patients
EGFR protein expression %
EGFR gene amplification %
Present study
1.3
0
Harris et al [4]
16
Not done
Tsutsui et al [5]
36
Walker & Dearing [6]
Bhargava et al [7]
7
6
Press et al [8]
27.9