OPEN PloS one | 21 Mar 2015
M Gong, W Dong, T He, Z Shi, G Huang, R Ren, S Huang, S Qiu and R Yuan
Methylenetetrahydrofolate reductase (MTHFR) polymorphism may be a risk factor for male infertility. However, the epidemiologic studies showed inconsistent results regarding MTHFR polymorphism and the risk of male infertility. Therefore, we performed a meta-analysis of published case-control studies to re-examine the controversy.
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