[1] Catholic Univ Korea, Uijeongbu St Marys Hosp, Coll Med, Dept Dermatol, Seoul, Gyeonggi Do, South Korea
[2] Catholic Univ Korea, Seoul St Marys Hosp, Coll Med, Dept Dermatol, Seoul, South Korea
[3] Catholic Univ Korea, Coll Med, Dept Biostat, 222 Banpo Daero, Seoul 137701, South Korea