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Mice cutaneous wound healing evaluation. (a): for MSC-alginate group, (b): for CS-alginate group, (c): for FBS-alginate group, and (d): for PBS-alginate group. (a1–d1): the skin wounds healing from appearance, (a2–d2): the pathology sections with HE staining (100x), and (a3–d3): the immunohistochemistry with VEGF-staining (200x).
