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1دورية أكاديمية
المؤلفون: Ferguson, Kelly K., Rosario, Zaira, McElrath, Thomas F., Vélez Vega, Carmen, Cordero, José F., Alshawabkeh, Akram, Meeker, John D.
المصدر: PLoS ONE; 6/13/2019, Vol. 14 Issue 6, p1-15, 15p
مصطلحات موضوعية: LABOR (Obstetrics), CHILDBIRTH, PREGNANT women, DISEASE risk factors, BIRTH rate, PREMATURE labor
مصطلحات جغرافية: PUERTO Rico
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2دورية أكاديمية
المؤلفون: Skulstad, Svein Magne, Igland, Jannicke, Johannessen, Ane, Bertelsen, Randi Jacobsen, Lønnebotn, Marianne, Omenaas, Ernst Reidar, Svanes, Cecilie, Real, Francisco Gomez
المصدر: PLoS ONE; 8/4/2017, Vol. 12 Issue 8, p1-12, 12p
مصطلحات موضوعية: MEDICAL registries, CHILDBIRTH, PREGNANCY, REPRODUCTIVE health, PREMATURE labor, CESAREAN section