1. Department of Dermatology, SMG-SNU Boramae Medical Center, Seoul, Korea.
2. Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea.
3. Department of Dermatology, Ajou University School of Medicine, Suwon, Korea.
4. Department of Dermatology, Yonsei University College of Medicine, Seoul, Korea.
5. Department of Dermatology, School of Medicine, Kyungpook National University, Daegu, Korea.
6. Department of Dermatology, School of Medicine, Chungnam National University, Daejeon, Korea.
7. Department of Dermatology, Guro Hospital, Korea University College of Medicine, Seoul, Korea.
8. Department of Dermatology, Inha University School of Medicine, Incheon, Korea.
9. Department of Dermatology, School of Medicine, Chosun University, Gwangju, Korea.
10. Department of Dermatology, Seoul National University Bundang Hospital, Bundang, Korea.
11. Yonsei Seran Dermatology and Laser Clinic, Seoul, Korea.
12. Department of Dermatology, Kyung Hee University School of Medicine, Seoul, Korea.