CYP24A1 and non-small cell lung carcinoma: Meanwhile, we found that smokers with homozygous for the common allele of CYP24A1 rs6068816, VDR rs10735810, and VDR rs1544410 who had plasma 25(OH)D of ≥20 ng/mL had a significantly reduced NSCLC risk compared to women with plasma 25(OH)D <20 ng/mL.