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1دورية أكاديمية
المؤلفون: Zhang, Xiaohui, Chen, Lijin, Wang, Xuemiao, Wang, Xiaoyan, Jia, Menghan, Ni, Saili, He, Wei, Zhu, Shankuan
المصدر: PLoS Medicine; 2/24/2020, Vol. 17 Issue 2, p1-19, 19p, 1 Diagram, 4 Charts, 2 Graphs
مصطلحات موضوعية: MATERNAL age, CHILDBIRTH, BIRTH rate, PREMATURE labor, ONE-child policy, China
مصطلحات جغرافية: ZHEJIANG Sheng (China), CHINA
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2دورية أكاديمية
المؤلفون: Sujan, Ayesha C., Quinn, Patrick D., Rickert, Martin E., Wiggs, Kelsey K., Lichtenstein, Paul, Larsson, Henrik, Almqvist, Catarina, Öberg, A. Sara, D'Onofrio, Brian M.
المصدر: PLoS Medicine; 12/2/2019, Vol. 16 Issue 12, p1-18, 18p, 3 Charts
مصطلحات موضوعية: PREGNANCY, CHILDBIRTH, MATERNAL age, PREGNANT women, PREMATURE labor, RESEARCH, SUBSTANCE abuse, PREMATURE infants, RESEARCH methodology, RETROSPECTIVE studies, GESTATIONAL age, EVALUATION research, PREGNANCY outcomes, LOW birth weight, COMPARATIVE studies, BIRTH weight, RESEARCH funding, LABOR (Obstetrics), SMALL for gestational age
مصطلحات جغرافية: SWEDEN