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A schematic illustration of the fabrication and application of PMS-PDA + H-Exo. (A) Images showing the source of human exfoliated deciduous teeth. (B) A schematic illustration showing the generation of exosomes from hypoxic pretreated SHEDs, and the rat model established to evaluate vascularized bone regeneration via injecting PMS-PDA + H-Exo into 5 mm rat calvarial defect. Photo credit: Y. Gao. PKUSS.
