Genefrequency: ER P 0.6578, ER p 0.3478, ERX 0.2522, ERx 0.7478. Conclusion: ER genes distribution in the hans in guangdong province is different from those in other areas.

• 雌激素受体基因频率 :ERP 0 6 5 78,ERp 0 3478,ERX 0 2 5 2 2 ,ERx 0 74 78。 结论 :ER基因、RFLP基因多态性在不同种族间分布存在着明显的差异