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(A) Western blot analysis to detect the collagen I protein expressions of spheroids grown in osteogenic media on Day 7. (B) Quantitative results of Western blot analysis of collagen I (90 kDa). (C) Quantitative results of Western blot analysis of collagen I (130 kDa). * Statistically significant differences were seen when compared with the data from the doxorubicin 0 μg/mL (Doxo0) group (p < 0.05).
