Keywords Tissue Engineering;Collagen;Hyaluronic acid;Chitosan;Chondroitin sulfate;The back of athymic nude mouse;Tissue engineering artifical cartilage;

• 组织工程;胶原;透明质酸;壳聚糖;硫酸软骨素;裸鼠皮下组织工程化人工软骨;