CYP1A1 and non-small cell lung carcinoma: The frequencies of CYP1A1 m2 homozygous major (AA), heterozygous (AG) and homozygous minor (GG) genotypes in healthy controls were 78.4, 13.6 and 8 %, whereas the same were 29.67, 58.14 and 12.19 % in NSCLC patients, respectively (Table 3).