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, InferiorFontan ProcedureAzygos VeinSinoatrial NodeTachycardia, SupraventricularHeart BlockMagnetic Resonance SpectroscopyUltrasonography, PrenatalHeart ValvesAtrial AppendageProlineHeart Septal Defects, AtrialPrenatal DiagnosisInfant, NewbornStereoisomerismSyndromeBody PatterningPregnancyModels, MolecularEchocardiographyMolecular StructureGestational AgeSupine PositionAsiaProne PositionProtein ConformationMolecular Sequence DataRetrospective StudiesSpleenStomachTreatment OutcomeTime FactorsAmino Acid SequenceFollow-Up StudiesBase SequencePostureBeakMutationBinding SitesMutagenesis, Site-DirectedPatient PositioningEscherichia coliKineticsAmino Acid SubstitutionSubstrate SpecificityProtein BindingPhylogenyCloning, MolecularDNASequence AlignmentSequence Homology, Amino AcidNucleic Acid ConformationProtein Structure, TertiarySequence Analysis, DNACell LineMovementPoint MutationPromoter Regions, GeneticTranscription, GeneticPlasmidsRecombinant ProteinsProtein Structure, Secondary