TeratocarcinomaTeratomaTretinoinTumor Cells, CulturedCell DifferentiationMolecular Sequence DataBase SequenceClone CellsEmbryonal Carcinoma Stem CellsCell LineBlastocystAnemia, Sickle CellPriapismCleavage Stage, OvumEmbryo, MammalianBucladesineAntigens, CD15Neoplasms, ExperimentalBlastomeresTesticular NeoplasmsUridine Diphosphate N-AcetylgalactosamineMice, Inbred StrainsHSP47 Heat-Shock ProteinsEndodermHybrid CellsTranscription, GeneticCloning, MolecularRNA, Messenger