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Confocal microscopy of scaffolds: (a) PA66 scaffold, (b) n-HA/GF/PA66 scaffold (X200), (c) n-HA/GF/PA66 scaffold (X500), and (d) n-HA/GF/PA66 scaffold (X1000) after 4d cell culture. Reprinted with permission (Su et al., 2013). Copyright 2013, Elsevier.
