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SEM images of (A) pure BC, pBC-P, and pBC-M, (B) BC–LRS, pBC–LRS-M and pBC–LRS-M–HA scaffolds; (C) (a) cross-section images of porous BC tube, (b) close up view of BC wall between pores, (c) porous structure of outer side, and (d) higher-resolution image of small area on the outer side of BC scaffold. Reprinted with permission [61,62,63]. Copyright 2015 Elsevier, 2019 Springer Nature, and 2010 John Wiley and Sons.
