Concepedia
American Journal of Obstetrics and Gynecology · 1983 · 195 citations · 0 references
MedicineMaternal HealthObstetricsMaternal-fetal MedicineObstetric ComplicationsPlacental AssessmentPlacental BiologyPlacental PhysiologyPlacental UltrasonographyGestation PeriodGestation PhysiologyTwin Pregnancy PhysiologyTwin Pregnancy TestingUmbilical Vein Injection