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hDPSC proliferation cultured in solid foams after 72 h. (a) Fluorescence microscope images of immunofluorescent labeling against Ki-67 (red) and nuclear counterstaining with DAPI (blue). Upper row: bCOL-I, middle row: 3hDAT:1bCOL-I, and lower row: hDAT solid foams (scale bars represent 100 µm, inset 25 µm). (b) Quantification of cell viability, data are represented as mean ± SD.
