1. Department of Dermatology, Ajou University School of Medicine, Suwon, Korea.
2. Office of Biostatistics, Medical Research Collaborating Center, Ajou Research Institute for Innovative Medicine, Ajou University Medical Center, Suwon, Korea.
3. Department of Pathology, Ajou University School of Medicine, Suwon, Korea.
4. Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea.