Fig. 3From: External magnetic field promotes homing of magnetized stem cells following subcutaneous injectionDifferentiation of WJMSCs. Osteogenic differentiation analysis of untransfected WJMSCs (a) and GFP/SPION-positive WJMSCs (c). Adipogenic differentiation analysis of untransfected WJMSCs (b) and GFP/SPION-positive WJMSCs (d)Back to article page