1. Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea.
2. Department of Dermatology, Seoul Medical Center, Seoul, Korea.
3. Department of Dermatology, Kyung Hee University College of Medicine, Seoul, Korea.
4. Department of Dermatology, Dankook University Medical College, Cheonan, Korea.
5. Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea.
6. Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.
7. Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Korea.
8. Department of Dermatology, SA Dermatology Clinic, Daejeon, Korea.
9. Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea.
10. Department of Dermatology, Pusan National University School of Medicine, Busan, Korea.
11. Department of Dermatology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea.
12. Department of Dermatology, Korea University College of Medicine, Seoul, Korea.
13. Department of Dermatology, Chungnam National University College of Medicine, Daejeon, Korea.
14. Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea.
15. Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
16. Department of Dermatology, Gachon University Gil Medical Center, Incheon, Korea.