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Pluripotency characterization of ESC-like cells with teratoma formation including tissue structures of all germ layers (a–d) and chimera formation (e–h). (a) Skin formation with keratinizing squamous epithelium, (b) respiratory epithelium with goblet cells, (c) neuronal rosette, and (d) primitive cartilage. (e, f) Blastocysts injected with GFP-marked ESC-like cells and chimera formation. Scale bars: (a), (e), and (f) 50 μm, (b) and (d) 10 μm, and (c) 25 μm.
