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Fluorescent labeling of images to indicate the fronts of new bone formation within 11 days.
Notes: In vivo staining was carried out by fluorochrome markers Calcein and Tetracycline at 14 and 3 days, respectively, before the animals were sacrificed. The speed of new bone formation was calculated by the length between two labels/days (μm/day).
Abbreviations: nHA, nano-hydroxyapatite; PLGA, poly (lactic-co-glycolic acid).
