Trends and geographical distribution of sex ratio at birth in China, 1953-2010
LI Zhi, ZHANG Shanshan, NI Junxue, QUAN Xin, LIU Jintao
Chinese Journal of Reproductive Health ›› 2016, Vol. 27 ›› Issue (1) : 13-18.
Trends and geographical distribution of sex ratio at birth in China, 1953-2010
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