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Representative SEM images of A10 cells (blue arrows) seeded on the PGS solid sheet (a,b), on the isotropic PGS membrane (c,d) and on the anisotropic PGS membrane (e,f). Panels (b), (d), and (f) show part of panels (a), (c), and (e) in higher magnification, respectively. Scale bar = 30 μm.
