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To test the hypothesis that polymorphisms in antioxidant genes are more susceptible to sperm DNA damage and male infertility, we examined 11 single-nucleotide polymorphisms from six antioxidant genes (GPX1, CAT, PON1, NQO1, SOD2/MnSOD, and SOD3) in 580 infertility cases and 580 controls from a Chinese population-based case–control study (NJMU Infertility Study). Genotypes were determined using the...
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