CaffeinePlacentaPlacenta DiseasesPlacenta PreviaPlacenta AccretaPlacenta, RetainedPregnancyTrophoblastsCentral Nervous System StimulantsTheobromineCoffeeMaternal-Fetal ExchangeChorionic VilliPregnancy ProteinsPlacentationFetusPre-EclampsiaGestational AgeRyanodineCalciumCytochrome P-450 CYP1A2Pregnancy Trimester, ThirdExtraembryonic MembranesChorionPregnancy, AnimalProcainePregnancy Trimester, FirstFetal Growth RetardationPlacental LactogenPhosphodiesterase InhibitorsDeciduaPlacental CirculationChoriocarcinomaUterusSarcoplasmic ReticulumRyanodine Receptor Calcium Release ChannelReceptor, Adenosine A2AFetal DevelopmentBeveragesPlacental HormonesDose-Response Relationship, DrugAbortion, VeterinaryAdenosine A2 Receptor AntagonistsAmnionReceptor, Adenosine A1Cesarean SectionMuscle ContractionEphedrineLabor, ObstetricPregnancy ComplicationsPregnancy Trimester, SecondPaulliniaImmunohistochemistryMolecular Sequence DataTime FactorsPregnancy Complications, ParasiticMalignant HyperthermiaAmniotic FluidUmbilical CordHydatidiform MoleDrinking BehaviorPurinergic P1 Receptor AntagonistsInfant, NewbornYolk SacGenomic ImprintingFetal DeathChorioamnionitisFetal BloodAdenosine A1 Receptor AntagonistsPlacental ExtractsBase SequenceReceptors, Adenosine A2Cells, CulturedKineticsTetracaineAllantoisPregnancy Complications, InfectiousAmino Acid SequenceAborted FetusGene ExpressionDrug Interactions