Fig. 1. Multi-lineage differentiation of hBMSCs. (A) Pellet test after 21 days of chondrogenic differentiation in hBMSCs. (B) Alizarin red staining of hBMSCs after 21-day incubation with osteogenic medium. (C) Oil red O staining showing adipogenic differentiation of hBMSCs after 21 days of incubation.