Influence of lifestyle choices on frequencies of major haplotypes of rs2551188‐rs2567206‐rs2567207‐rs1017536 (G‐C‐T‐G) and rs163090‐rs162330‐rs162331 (A‐G‐A and T‐T‐G) of CYP1B1 between healthy controls and prostate cancer patients. The gene discussed is CYP1B1; the disease is Familial prostate cancer.