IsomerismHeterotaxy SyndromeHeart Defects, CongenitalHeart AtriaSitus InversusHeart Septal DefectsAbnormalities, MultipleVenae CavaeDextrocardiaLevocardiaHeart Bypass, RightPulmonary VeinsErythrocruorinsPulmonary Veno-Occlusive DiseaseGrowth Differentiation Factor 1Fetal HeartCyanosisAbortion, EugenicNodal ProteinAtrioventricular NodeFetal DiseasesVena Cava, InferiorSupine PositionProne PositionFontan ProcedureAzygos VeinSinoatrial NodeTachycardia, SupraventricularMagnetic Resonance SpectroscopyHeart BlockUltrasonography, PrenatalHeart ValvesProlineAtrial AppendageHeart Septal Defects, AtrialModels, MolecularMolecular Sequence DataPrenatal DiagnosisInfant, NewbornStereoisomerismSyndromeBody PatterningPregnancyMolecular StructureEchocardiographyAmino Acid SequenceProtein ConformationBase SequenceGestational AgeAsiaPostureSpleenRetrospective StudiesStomachTime FactorsBinding SitesMutationPatient PositioningTreatment OutcomeStructure-Activity RelationshipMutagenesis, Site-DirectedFollow-Up StudiesAmino Acid SubstitutionEscherichia coliPhylogenySubstrate SpecificityKineticsSequence AlignmentCloning, MolecularSequence Homology, Amino AcidProtein BindingNucleic Acid ConformationDNASequence Analysis, DNAMovementProtein Structure, TertiaryPoint MutationProtein Structure, SecondaryProprioceptionPromoter Regions, GeneticTranscription, GeneticRotationEye MovementsCodonHeadRecombinant ProteinsSpecies SpecificityPlasmidsCrystallography, X-RayCysteineCell LineChromosome MappingSequence Homology, Nucleic AcidConserved SequenceChromosomal Position EffectsBacterial ProteinsDNA PrimersMutagenesisBiomechanical PhenomenaAmino Acids