title: Association between the MTHFR C677T Polymorphism and Breast Cancer Risk: A Meta-Analysis of 23 Case-Control Studies.
authors: Department of Oncology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.
authors: Wanjun
authors: W
authors: Yan
authors: Department of General Surgery, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.
authors: Yafei
authors: Y
authors: Zhang
authors: Department of Medical Imaging, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.
authors: Enfa
authors: E
authors: Zhao
authors: Department of Oncology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.
authors: Shuqun
authors: S
authors: Zhang
mesh_terms: D001943:Breast Neoplasms / Q000235:genetics*; D016022:Case-Control Studies; D005260:Female; D020022:Genetic Predisposition to Disease; D006801:Humans; D042965:Methylenetetrahydrofolate Reductase (NADPH2) / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D044465:White People / Q000235:genetics
chemical_list: C573423:MTHFR protein, human; D042965:Methylenetetrahydrofolate Reductase (NADPH2)