EGFR and adenocarcinoma: Where full coverage of screening is not available or possible, providers may target the patient groups identified in this review who are more likely to harbor mutations (e.g. 51.5% of Asian females, 52.2% of Asian smokers, 44.7% of Asian patients with adenocarcinoma, and 39.8% of Caucasian non-smokers harbor an EGFR mutation).