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FE-SEM images for nanofibers that contain different amounts of HAp: 0% (a), 3% (b), 5% (c) and 7% (d) at low magnification. Corresponding figures containing 0% (e), 1% (f), 3% (g) and 7% (h) at high magnification from the encircled areas of low magnification images are also included.
