Vaginal flora during pregnancy and subsequent risk of preterm birth or prelabor rupture of membranes: a nested case-control study from China by Xiaomei Liu, Shuting Si, Li Huang, Meiliang Zhang, Wenya Chen, Liquan Wang, Yunxian Yu

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Global trends in total fertility rate and its relation to national wealth, life expectancy and female education by Haoyue Cheng, Wenliang Luo, Shuting Si, Xing Xin, Zhicheng Peng, Haibo Zhou, Hui Liu, Yunxian Yu

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Construction of a new complete growth reference for urban Chinese children by Wei Wu, JingNan Chen, MinJia Mo, Shuting Si, Ke Huang, RuiMin Chen, Mireguli Maimaiti, ShaoKe Chen, Chunxiu Gong, Min Zhu, ChunLin Wang, Zhe Su, Yan Liang, Hui Yao, HaiYan Wei, RongXiu Zheng, HongWei Du, Yu Yang, FeiHong Luo, Pin Li, LanWei Cui, GuanPing Dong, YunXian Yu, Junfen Fu

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