PlacentaPlacenta DiseasesPlacenta PreviaPlacenta AccretaPlacenta, RetainedPregnancyTrophoblastsChorionic VilliMaternal-Fetal ExchangePregnancy ProteinsPlacentationFetusPre-EclampsiaGestational AgeExtraembryonic MembranesChorionPregnancy Trimester, ThirdPregnancy, AnimalPregnancy Trimester, FirstPlacental LactogenDeciduaPlacental CirculationChoriocarcinomaFetal Growth RetardationUterusFetal DevelopmentPlacental HormonesAbortion, VeterinaryAmnionCesarean SectionLabor, ObstetricPregnancy Trimester, SecondPregnancy Complications, ParasiticAmniotic FluidImmunohistochemistryUmbilical CordHydatidiform MoleYolk SacPregnancy ComplicationsGenomic ImprintingFetal DeathChorioamnionitisMolecular Sequence DataPlacental ExtractsFetal BloodAllantoisBase SequencePregnancy Complications, InfectiousAborted FetusTissue DistributionAmino Acid SequenceInfant, NewbornPostpartum HemorrhageGene ExpressionCoriolaceaeUltrasonography, PrenatalPregnancy TrimestersVascular Endothelial Growth Factor Receptor-1