IsomerismHeterotaxy SyndromeHeart Defects, CongenitalHeart AtriaSitus InversusHeart Septal DefectsAbnormalities, MultipleVenae CavaeDextrocardiaLevocardiaHeart Bypass, RightPulmonary VeinsErythrocruorinsPulmonary Veno-Occlusive DiseaseGrowth Differentiation Factor 1Fetal HeartCyanosisAbortion, EugenicNodal ProteinAtrioventricular NodeMagnetic Resonance SpectroscopyMolecular StructureFetal DiseasesVena Cava, InferiorFontan ProcedureAzygos VeinStereoisomerismSinoatrial NodeTachycardia, SupraventricularHeart BlockUltrasonography, PrenatalHeart ValvesAtrial AppendageProlineHeart Septal Defects, AtrialPrenatal DiagnosisInfant, NewbornSyndromeSulfur CompoundsPregnancyBody PatterningModels, MolecularVolatile Organic CompoundsEchocardiographyStructure-Activity RelationshipAsiaGestational AgePlant ExtractsDrug Evaluation, PreclinicalSpleenPhenolsProtein ConformationHeterocyclic CompoundsInhibitory Concentration 50StomachBiphenyl CompoundsSulfhydryl CompoundsTime FactorsSmall Molecule LibrariesOrganotin CompoundsRetrospective StudiesAniline CompoundsSpiro CompoundsNitrogen CompoundsChromatography, High Pressure LiquidDrug DesignDose-Response Relationship, DrugTreatment OutcomeNitroso CompoundsOrganometallic CompoundsOrganoselenium CompoundsDrug Screening Assays, AntitumorOrganophosphorus CompoundsAzo CompoundsGas Chromatography-Mass SpectrometryFollow-Up StudiesKineticsEpoxy CompoundsVolatilizationHigh-Throughput Screening AssaysQuaternary Ammonium CompoundsDrug DiscoveryPolycyclic Compoundsp-Methoxy-N-methylphenethylamineHydrocarbons, AromaticAntineoplastic AgentsEnzyme InhibitorsMass SpectrometryBenzyl CompoundsOrganic ChemicalsTerphenyl CompoundsCell Line, TumorTriterpenesFuransOxidation-ReductionMolecular ConformationAllyl CompoundsSpectrophotometry, UltravioletGlycosidesHeterocyclic Compounds, 2-Ring