Structural property boxplots. (a) Linear stiffness, (b) ultimate tensile load, (c) energy, (d) maximum extension for CGS (n = 11), DSS (n = 6), ESS (n = 23), grafted ESS (GESS, n = 5), autograft (AG, n = 8), and intact murine skin (n = 13). Shaded area corresponds to in vivo samples collected from athymic mice at six weeks after grafting. a indicates significant difference (p <0.05) between in vitro group with CGS, b indicates significant difference (p < 0.05) between ESS and DSS. c indicates significant difference (p < 0.05) between grafted ESS and ESS. d indicates significant difference (p < 0.05) between grafted ESS and autograft. e indicates significant difference (p < 0.05) between grafted ESS and ungrafted murine skin. f indicates significant difference (p < 0.05) between autograft and skin.