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Association of China’s universal two child policy with changes in births and birth related health factors: national, descriptive comparative study
Li HT, Xue M, Hellerstein S, Cai Y, Gao Y, Zhang Y, Qiao J, Blustein J, Liu JM (2019). Association of China’s universal two child policy with changes in births and birth related health factors: national, descriptive comparative study. BMJ 366:l4680.
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