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Tracking PKH26-labeled DAs in nude mice skin. One milliliter of hydrogel containing 105 DAs labeled by PKH26 was subcutaneously injected into nude mice. Punch biopsies were taken 4 and 8 weeks post injection, respectively, for immunofluorescence examination. Red fluorescent cells represent cells from injected DAs. Pictures were taken under ×200 magnification under an immunofluorescence microscope. Color images available online at www.liebertpub.com/scd
