Polymorphisms in <i>CYP1A1</i> and breast carcinoma risk in a population‐based case–control study of Chinese women

Abstract

Results from the current study suggest that homozygosity for the CYP1A1*2A and CYP1A1*2C alleles in the CYP1A1 gene may be associated with a reduced risk for breast carcinoma, particularly among lean women with long-term endogenous estrogen exposure.