EGFR and breast carcinoma: EGFR is amplified or overexpressed in a high percentage of triple‐negative breast cancers and more frequently than in other types of breast cancers (Reis‐Filho & Tutt, 2008) (Reis‐Filho et al, 2006; Reis‐Filho & Tutt, 2008; Gumuskaya et al, 2010; Shao et al, 2011; Martin et al, 2012; Park et al, 2014; Nakai et al, 2016).