1. Department of Dermatology, Soonchunhyang University Hospital Bucheon, Soonchunhyang University College of Medicine, Bucheon, Korea.
2. Department of Dermatology, Cutaneous Biology Research Institute, Seoul, Korea.
3. Department of Dermatology, Yonsei University College of Medicine, Seoul, Korea.
4. Yonsei BB Skin Clinic, Seoul, Korea.
5. Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.