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SEM morphological and structural characterizations of titanium cages seeded with MSCs and cultured in osteogenic medium with Lyosecretome or without (CTR) for 7 days. Magnifications: 250× (a,e), 500× (b,f), 1000× (c,g), and 2500× (d,h). Scale bars: 200 (a,e), 100 (b,f), 50 (c,g), and 20 (d,h) µm.
