Does genetic polymorphism of ESR1 rs2881766 increase breast cancer risk in Korean women?
The results showed that ESR1 rs2881766 polymorphism increased breast cancer risk and rs3798377 decreased the risk in Korean women. Because of wide variation of the association between SNP genotype and breast cancer risk according to age group and tumor subtypes, further studies such as a large-scale cohort study need for validation and test of biologic significance.
Transcutaneous electrical nerve stimulation is a useful method to improve the quality of life of patients with tinnitus.