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MedicineMaternal HealthObstetricsHigh-risk PregnancyMaternal-fetal MedicinePerinatal EpidemiologyMaternal EpidemiologyMaternal Medical ConditionsObstetric HistoryPlacenta PreviaPregnancyRisk Factors For Preterm BirthCase-control Study DesignMaternal Age At BirthMaternal Age DistributionMaternal Age EffectsMaternal Demographic DeterminantsPlacenta Previa AssessmentPreterm Birth Prevalence
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Placenta previa/accreta and prior cesarean section.
Steven L. Clark, Paul P. Koonings, Jeffrey P. Phelan · PubMed · 1985 · 718 citations
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Gertrud S. Berkowitz, Mary Louise Skovron, Robert H. Lapinski et al. · New England Journal of Medicine · 1990 · 429 citations
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M. Maresh · Archives of Disease in Childhood · 1989 · 350 citations · Full text
Maternal age, obstetric complications, and the outcome of pregnancy.