American Journal of Obstetrics and Gynecology · 2007 · 187 citations · 29 references
Public HealthMaternal HealthObstetricsHigh-risk PregnancyMaternal-fetal MedicineObstetric ComplicationsGestational Age AssessmentMaternal ComplicationsMaternal Medical Complications In PregnancyMaternal Medical ConditionsPregnancySevere Maternal MorbidityGestational Age At BirthGestational Age MeasurementGestational Age-related MorbidityMaternal Age At BirthPregnancy-related Complications
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