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Zeng Yi, Tu Ping, Gu Baochang, Xu Yi, Li Bohua, Li Yongpiing, Causes and Implications of the Recent Increase in the Reported Sex Ratio at Birth in China, Population and Development Review, Vol. 19, No. 2 (Jun., 1993), pp. 283-302
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Yi Zeng
Union Hospital
Ping Tu
Central South University
Baochang Gu
Xuzhou Medical College
Population and Development Review
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Zeng et al. (Tue,) studied this question.
synapsesocial.com/papers/6a20719021cb8130ca780252 — DOI: https://doi.org/10.2307/2938438