1. Department
of Materials Science and Engineering, Seoul National University, Seoul 151-742, Korea
2. School
of Biomedical Engineering, Korea University, Seoul 136-703, Korea
3. Department
of Reconstructive and Plastic Surgery, Seoul National University Hospital, Seoul 110−744, Korea
4. Department
of Plastic and Reconstructive Surgery, Seoul National University Boramae Hospital, Seoul 156-707, Korea
5. Biomedical
Implant Convergence Research Center, Advanced Institutes of Convergence Technology, Suwon 443-270, Korea