American Journal of Obstetrics and Gynecology · 2003 · 147 citations · 17 references
Public HealthMaternal HealthObstetricsMaternal-fetal MedicineNeonatologyPerinatal EpidemiologyInfant MortalityNeonatal MortalityPerinatal MortalityPlacenta PreviaPlacental PhysiologyPregnancyNeonatal Mortality EpidemiologyNeonatal Mortality RatesNeonatal Mortality ReductionPerinatal Mortality EpidemiologyPlacenta Previa AssessmentPopulation-based Surveys
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A method of imputing length of gestation on birth certificates.
S M Taffel, David Johnson, Robert Heuser · PubMed · 1982 · 139 citations