There have been different reported incidences of EGFR mutations in lung adenocarcinomas around, depending on ethnicity, reported to be 40% in East Asia, 15% in Europe, 22% in North America, 26% in the Indian subconti- nent, 36% in South America, 12% in Oceania and 21% in Africa (8, 10, 11, 12, 13). Here, EGFR is linked to lung adenocarcinoma.