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BMP-2 protein levels secreted by osteoblast-like cells cultured on Ti-PEEK, PEEK, and TCP surfaces.
Notes: *P<0.05 vs PEEK; #P<0.05 vs TCP.
Abbreviations: BMP, bone morphogenetic protein; PEEK, polyetheretherketone; Ti-PEEK, titanium-coated PEEK; TCP, tissue culture plastic.
