[1] Chung Ang Univ, Coll Med, Dept Dermatol, Gwangmyeong Hosp, Anseong, Gyeonggi Do, South Korea
[2] Sungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Dermatol, Seoul, South Korea
[3] Konkuk Univ, Sch Med, Dept Dermatol, Seoul, South Korea
[4] Univ Ulsan, Coll Med, Dept Dermatol, Asan Med Ctr, Seoul, South Korea
[5] Medytox Inc, Seoul, South Korea
[6] Chung Ang Univ, Chung Ang Univ Hosp, Dept Dermatol, Coll Med, Seoul, South Korea