Fig. 4From: The effect of serum types on Chondrogenic differentiation of adipose-derived stem cellsGAG deposition (a) and histological observation of alcian blue staining (b) on day 14. $ indicates a significant difference as compared with GM group. * indicates a significant difference as compared with FBS group within the same growth factor. # indicates a significant difference as compared with FBS group with growth factors. (*$#p < 0.05)Back to article page