1. Methylenetetrahydrofolate reductase C677T polymorphism and the risk of unexplained recurrent pregnancy loss: A meta-analysis 
Aiguo Ren, M.D, Ph.D., Juan Wang, M.D. 
Fertility and Sterility 
Volume 86, Issue 6, Pages (December 2006)
DOI: /j.fertnstert
Copyright © 2006 American Society for Reproductive Medicine Terms and Conditions

2. FIGURE 1
MTHFR C677T polymorphism and the risk of URPL: contrast of TT genotype against CC genotype. Each study is shown by an OR estimate with the corresponding 95% CI. The random-effects pooled OR is shown. The horizontal axis is plotted on a log scale. Studies are ordered according to year of publication.
Ren. MTHFR and recurrent pregnancy loss. Fertil Steril 2006.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2006 American Society for Reproductive Medicine Terms and Conditions

3. FIGURE 2
MTHFR C677T polymorphism and the risk of URPL: contrast of TT genotype against CT and CC genotype combination. Each study is shown by an OR estimate with the corresponding 95% CI. The random-effects pooled OR is shown. The horizontal axis is plotted on a log scale. Studies are ordered according to year of publication.
Ren. MTHFR and recurrent pregnancy loss. Fertil Steril 2006.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2006 American Society for Reproductive Medicine Terms and Conditions