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MedicineMaternal HealthObstetricsPerinatal EpidemiologyPopulation HealthPreterm BirthMaternal Disease PreventionMaternal Health PreventionPregnancyPrenatal CareRisk Factors For Preterm BirthScreening For Preterm BirthPregnancy Risk ReductionPreterm Birth IncidencePreterm Birth PrevalencePreterm Birth Risk ReductionPreterm Birth Surveillance
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Pathik D. Wadhwa, Curt A. Sandman, Manuel Porto et al. · American Journal of Obstetrics and Gynecology · 1993 · 795 citations · Full text
Rachel L. Copper, Robert L. Goldenberg, Anita Das et al. · American Journal of Obstetrics and Gynecology · 1996 · 693 citations