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The comparison of the cells morphology of A431 (A), BHK-21 (B) and C2C12 (C) cells cultured on the solid surface (i.e. the control cultures): 2nd (a) and 4th (b) day of culture; and those ones cultured on the PFD/DMEM interface: 2nd (c) and 4th (d) day of culture. Scale bar = 0.2 mm
