1. Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06973, Korea.
2. Department of Medicine, Graduate School, Chung-Ang University, Seoul 06973, Korea.
3. Biomedical Research Institute, R&D Center, MEDIPOST Co., Ltd., Seongnam 13494, Korea.
4. Thema Dermatologic Clinic, Seoul 06524, Korea.
5. Department of Dermatology, Dankook Medical College, Cheonan 31116, Korea.
6. Fort Hays State University, Hays, KS 67601, USA.