1. Department of Dermatology and Cutaneous Biology Research Institute; Yonsei University College of Medicine; Seoul
2. Department of Dermatology; Chonbuk National University Medical School; Jeonju
3. Departments of Dermatology; Chonnam National University Medical School; Gwangju
4. Department of Dermatology; College of Medicine; The Catholic University of Korea; Seoul; Korea
5. Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; Kurume; Japan