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Cell viability and morphology when cultured on injectable hydrogels: (a) cell viability of HUVECs at day 1, day 2 and day 3; (b) cell viability of HSFs at day 1, day 2 and day 3; (c) cell morphology of HUVECs at day 1, day 2 and day 3; (d) cell morphology of HSFs at day 1, day 2 and day 3; the scale bars are 200 μm (n = 4, * means p ≤ 0.5, ** means p ≤ 0.01).
