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(A) schematic diagram of the compact layer-containing biphasic scaffold. (B) schematic diagram of the compact layer-free biphasic scaffold. (C) gross appearance of the bony phase. (D) the bony phase obtained by using a computer-controlled nozzle comprised of telescopic tubes. (E) schematic diagram of the chondral phase. (F) gross appearance of the chondral phase. (G) gross apperance of the bipasic scaffold.
