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3D printed constructs made of a composite hydrogel (alginate + nanofibrillated cellulose) seeded with human chondrocytes. (A) 3D printed small grids (7.2 × 7.2 mm2). Deformed grid during (B), and after (C) squeezing. (D) 3D printed human ear. (E, F) 3D printed sheep meniscus. Reproduced from [115] with permission Copyright (2015) American Chemical Society.
