Secular trends of advanced maternal age and the number of births in a tertiary-level hospital in Beijing since the implementation of two-child policy

WU Bohao, JIN Chuyao, WANG Huiying, LI Nan, LI Zhiwen

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Chinese Journal of Reproductive Health ›› 2018, Vol. 29 ›› Issue (3) : 201-204.

Secular trends of advanced maternal age and the number of births in a tertiary-level hospital in Beijing since the implementation of two-child policy

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{{article.zuoZheEn_L}}. {{article.title_en}}[J]. {{journal.qiKanMingCheng_EN}}, 2018, 29(3): 201-204

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