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Immunostaining of different types of produced collagen to characterize the phenotype of resulting cartilage in response to ROCK inhibition. Collagen II, I, and X were stained in (A) μRB, (B) 3D-HG, and (C) pellet culture and varying polymer compositions after 21 days in chondrogenic medium. Scale bars: 100 μm. Color images are available online.
