1. Department of DermatologyChonnam National University Medical School Gwangju Korea
2. Department of PathologyChonnam National University Medical School Gwangju Korea
3. Department of SurgeryChonnam National University Medical School Gwangju Korea
4. Department of Orthopedic SurgeryChonnam National University Medical School Gwangju Korea
5. Department of DermatologyUniversity of Pennsylvania Philadelphia Pennsylvania