Association between maternal MTHFR C677T polymorphism and neural tube defects in offsprings: a Meta-analysis
FANG Yulian, MA Shikun, SHI Ouyan, ZHANG Peng, CAI Chunquan
Tianjin Medical Journal . 2015, (5): 552 -558 .  DOI: 10.11958/j.issn.0253-9896.2015.05.028