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Compressive strength (a) and modulus (b) of the PEEK-HAP/GO, PEEK and PEEK-HAP scaffolds with different GO content. The PEEK-HAP scaffolds and PEEK-HAP/GO scaffolds with 0.25 wt%, 0.5 wt%, 0.75 wt%, 1 wt%, 1.25 wt% GO were labeled PH scaffolds and PHG1, PHG2, PHG3, PHG4, PHG5, respectively. Data are presented as mean ± SD for n = 6 (*P < 0.05, **P < 0.01).
