1. Department of Dermatology; Seoul National University College of Medicine; Seoul Korea
2. Department of Dermatology; Korea University College of Medicine; Seoul Korea
3. Department of Dermatology; Hallym University College of Medicine; Anyang Korea
4. Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
5. Department of Dermatology; Hanyang University College of Medicine; Seoul Korea
6. Department of Dermatology; National Medical Center; Seoul Korea
7. Department of Dermatology; University of Ulsan College of Medicine; Seoul Korea
8. Department of Dermatology; Kyungpook National University School of Medicine; Daegu Korea
9. Department of Dermatology; Yonsei University College of Medicine; Seoul Korea
10. Department of Dermatology; Chonnam National University Medical School; Gwangju Korea
11. Department of Dermatology; Kosin University College of Medicine; Busan Korea
12. Department of Dermatology; Ewha Womans University School of Medicine; Seoul Korea