Embryonic Stem CellsEmbryoid BodiesCell DifferentiationEmbryo, MammalianStem CellsTeratomaEndodermCell Culture TechniquesPluripotent Stem CellsCell LineageInduced Pluripotent Stem CellsOctamer Transcription Factor-3Germ LayersCell LineGene Expression Regulation, DevelopmentalCells, CulturedYolk SacCell AggregationBone Morphogenetic Protein 4Feeder CellsTotipotent Stem CellsCryoultramicrotomyFetal ProteinsMyocytes, CardiacPrimitive StreakMesodermStage-Specific Embryonic AntigensEmbryonic DevelopmentReverse Transcriptase Polymerase Chain ReactionGATA4 Transcription FactorHomeodomain ProteinsTretinoinChimeraLeukemia Inhibitory FactorBiological MarkersHematopoiesisBlastocystTeratocarcinomaHepatocyte Nuclear Factor 3-betaHematopoietic Stem CellsEctodermLamininTranscription FactorsOrganoidsKaryotypingHematopoiesis, ExtramedullaryEmbryonic and Fetal DevelopmentGreen Fluorescent Proteins