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. 2019 Jun 25;17:211. doi: 10.1186/s12967-019-1960-x

Fig. 9.

Fig. 9

Tendon cell proliferation and collagen type I expression. a Treatment of tendon cells with BMSC-EVs (20 μg/mL) increased cell proliferation significantly. b The expression of collagen type I, was increased by BMSC-EVs (20 ng/mL). Data are represented as mean ± SD. *p < 0.05