1. Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
2. Department of Dermatology, Hanyang University Hospital, Hanyang University College of Medicine, Seoul, Korea.
3. Department of Dermatology, Hallym University Sacred Heart Hospital, Anyang, Korea.
4. Department of Dermatology, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea.
5. Department of Dermatology, Incheon St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea.
6. Departments of Dermatology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea.
7. Department of Dermatology, National Medical Center, Seoul, Korea.
8. Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
9. Department of Dermatology, Pusan National University Yangsan Hospital, Yangsan, Korea.
10. Department of Dermatology, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Korea.
11. Department of Dermatology, Korea University College of Medicine, Seoul, Korea.
12. Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea.
13. Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea.
14. Department of Dermatology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea.
15. Department of Dermatology, Kosin University College of Medicine, Busan, Korea.
16. Department of Dermatology, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea.
17. Department of Dermatology, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea.
18. Department of Dermatology, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea.
19. Department of Dermatology, Ewha Womans University College of Medicine, Seoul, Korea.
20. Department of Dermatology, Chosun University College of Medicine, Gwangju, Korea.