EGFR and neoplasm: Our study did not reveal any significant association between clinical features such as age, gender, tumor stage, smoking, tobacco usages with mutations across any of the 17 genes probed in the genotyping experiment, other than fourfold higher EGFR mutations (p = 0.001), and twofold higher mutations (p = 0.02) among non-smokers (Table 2 and Supplementary Table 7), consistent with literature [21].