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Osteoblast cells after 14 days culture formed in Ti-Nb-Zr alloy scaffold prepared with the space holder method: (a) cell formed in pores and surface of the scaffold; (b) a cell layer on the surface of scaffold; (c) cell formed in the pores of scaffold and (d) cells that were formed in the space between particles. Reprinted with permission from [45]. Copyright 2009, Elsevier.
