CYP2R1 and non-small cell lung carcinoma: No influence on the risk of developing NSCLC was found in our patients for the following gene polymorphisms: VDR Cdx2 rs11568820, VDR TaqI rs731236, VDR ApaI rs7975232, VDR FokI rs2228570, CYP27B1 rs4646535, CYP27B1 rs3782130, CYP27B1 rs10877012, CYP27B1 rs703842, CYP24A1 rs6068816, CYP24A1 rs4809957, CYP2R1 rs10741657, and GC rs7041.