Fig. 3
From: The effect of serum types on Chondrogenic differentiation of adipose-derived stem cells
Chondrogenic marker gene expression using RT-PCR on day 7 (a) and 14 (b) (n = 3). The relative expression ratio of collagen type II to collagen type I was presented in (c). * indicates a significant difference (p < 0.05) as compared with FBS group within the same growth factor condition