Neural TubeNeurulationAnencephalyCentral Nervous SystemNeural CrestSpinal DysraphismNervous SystemChick EmbryoEbstein AnomalyNotochordGene Expression Regulation, DevelopmentalCongenital AbnormalitiesPollen TubeNeural Tube DefectsAbnormalities, MultipleBody PatterningPregnancyFolic AcidIn Situ HybridizationSpina Bifida OccultaQuailRhombencephalonCoturnixHedgehog ProteinsMorphogenesisSomitesEmbryo, MammalianEctodermEmbryonic InductionEncephalocelePaired Box Transcription FactorsFallopian TubesMesodermMeningomyeloceleCoronary Vessel AnomaliesPelger-Huet AnomalyHomeodomain ProteinsPrenatal DiagnosisInfant, NewbornEmbryonic and Fetal DevelopmentEustachian TubeSpinal CordSpina Bifida CysticaEmbryo, NonmammalianTranscription FactorsChest TubesUrogenital AbnormalitiesZebrafish ProteinsHeart Defects, CongenitalVitamin B ComplexEmbryonic DevelopmentFetal DiseasesCell DifferentiationZebrafishNerve Tissue ProteinsAvian ProteinsCranial NervesPreconception CareNeural PlateBone Morphogenetic ProteinsTissue TransplantationCell MovementMesencephalonUltrasonography, PrenatalTooth AbnormalitiesAbnormalities, Drug-InducedMice, Mutant StrainsSignal TransductionGestational AgeFetal DeathAbortion, TherapeuticMolecular Sequence DataPhenotypeBrainNeuronsXenopus ProteinsWnt3 ProteinMutationGastrulaTeratogensSyndromeWnt ProteinsMouth AbnormalitiesFood, FortifiedTailSkullAmniocentesisDNA-Binding ProteinsWnt1 ProteinHoloprosencephalyCulture TechniquesFolic Acid DeficiencyMice, TransgenicTime FactorsNeuroepithelial CellsImmunohistochemistryGenes, HomeoboxFallopian Tube NeoplasmsTrans-ActivatorsStem Cells