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Effects of initiator ratio on antibiotics elution and compressive strength of PMMA bone cement. (a) SEM images and morphology of PMMA cement. (b) Gentamicin elution profile. (c) Cumulative gentamicin release percentage. (d) Compressive strength. White bar: unsoaked cement; black bar: PBS-soaked cement. The dashed line indicates the ISO standard for compressive strength (70 MPa).
