1. Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Korea.
2. Chungdam Gowoonsesang, Dr. G Dermatology Clinic, Seoul, Korea.
3. Chungdam Hana Dermatolgic Clinic, Seoul, Korea.
4. Department of Dermatology, National Police Hospital, Seoul, Korea.
5. Department of Dermatology, Yonsei University College of Medicine, Seoul, Korea.
6. Department of Dermatology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
7. Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea.
8. Department of Dermatology, Pusan National University School of Medicine, Busan, Korea.
9. Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea.
10. Kims Dermatologic Clinic, Busan, Korea.
11. Department of Dermatology, Wonkwang University School of Medicine, Iksan, Korea.
12. Department of Dermatology, Soonchunhyang University College of Medicine, Seoul, Korea.
13. Yonsei Dermatologic Clinic, Jeju, Korea.
14. Deparment of Dermatology, Inje University Seoul Paik Hospital, Seoul, Korea.
15. Severance Dermatologic Clinic, Daegu, Korea.
16. DS Dermatologic Clinic, Daejeon, Korea.
17. Jang Dermatologic Clinic, Incheon, Korea.