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Cell culture and identification. (a–c) pericytes, postnatal human dental pulp stem cells (DPSCs), and stem cells from human exfoliated deciduous teeth (SHEDs) showed similar morphological features under an inverted microscope. (d–f) Alizarin-red staining assay. (g–l) Oil red O staining assay. (m–r) Neurogenic differentiation assay.
