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The High Prevalence of Vitamin D Deficiency and Its Related Maternal Factors in Pregnant Women in Beijing
- Shu Jun Song,
- Ling Zhou,
- Shaoyan Si,
- Junli Liu,
- Jinlian Zhou,
- Kai Feng,
- Jie Wu,
- Wenying Zhang
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- Published: December 26, 2013
- https://doi.org/10.1371/journal.pone.0085081