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A cross-sectional study on prevalence of paternal and parental preconception folic acid supplement use and its influencing factors
WANG Ding-mei, ZHANG Yi, YE Ying, JIANG Yuan,MA Xiao-jing, YAN Wei-li, HUANG Guo-ying
Chinese Journal of Evidence -Based Pediatric . 2017, (1): 1 -6 .