Affiliation: | 1. Department of Orthopedic Surgery, College of Medicine, Seoul National University, SMG-SNU Boramae Medical Center, Seoul 156-707, Republic of Korea;2. Department of Materials Science and Engineering, College of Engineering, Seoul National University, Seoul 151-744, Republic of Korea;3. Institute of Medical and Biological Engineering, Seoul National University Medical Research Center, Seoul National University, Seoul 110-799, Republic of Korea;4. KRICT-EPFL Global Research Laboratory, Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 305-600, Republic of Korea |