5A multi-center study of repairing articular cartilage defects of the knee using cultured autologous chondrocytesSeok-Jung Kim,Cheong-Ho Chang,Jae-Deog Jang,Dong-Sam Suh,Sae-Bom Lee,Hyun-Jo Kim,Kyung-Hwan Suhl研究与报告6418-6422