Fig. 2
From: The therapeutic effects of autologous conditioned serum on knee osteoarthritis: an animal model
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13104-022-06166-1/MediaObjects/13104_2022_6166_Fig2_HTML.png)
Growth factors concentration level in Nano-carbon-stimulated or polished glass beads ACS. Data are presented as mean ± standard division (SD). P < 0.05 was considered statistically significant