1. Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
2. Department of Medical Device Management & Research, SAIHST, Sungkyunkwan University, Seoul, Korea
3. Medytox Inc, Seoul, Korea
4. Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea
5. Department of Dermatology, Incheon St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul, Korea
6. Department of Dermatology, School of Medicine, Kyung Hee University, Seoul, Korea
7. Department of Dermatology, Ilsan Paik Hospital, College of Medicine, Inje University, Goyang, Korea
8. Department of Dermatology, Seoul National University Bundang Hospital, Gyeonggi, Korea