1. Department of Dermatology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea.
2. Department of Medical Science, Chungnam National University School of Medicine, Daejeon, Korea.
3. Department of Dermatology, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
4. Gyeongsang Institute of Health Sciences, Jinju, Korea.